diff --git a/cli/src/main.rs b/cli/src/main.rs
index 0942668..0d28ddd 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -28,18 +28,67 @@ enum Command {
         index: usize,
         #[arg(short, long)] system: bool,
     },
+    /// 编辑指定位置的路径
+    Edit {
+        index: usize,
+        new_path: String,
+        #[arg(short, long)] system: bool,
+    },
+    /// 上移路径（--steps 指定移动格数，默认 1）
+    MoveUp {
+        index: usize,
+        #[arg(long, default_value = "1")] steps: usize,
+        #[arg(short, long)] system: bool,
+    },
+    /// 下移路径（--steps 指定移动格数，默认 1）
+    MoveDown {
+        index: usize,
+        #[arg(long, default_value = "1")] steps: usize,
+        #[arg(short, long)] system: bool,
+    },
+    /// 清理无效和重复路径
+    Clean {
+        #[arg(short, long)] system: bool,
+        #[arg(short, long)] user: bool,
+        #[arg(long)] dry_run: bool,
+        #[arg(long)] json: bool,
+    },
+    /// 启用指定位置的路径
+    Enable {
+        index: usize,
+        #[arg(short, long)] system: bool,
+        #[arg(short, long)] user: bool,
+    },
+    /// 禁用指定位置的路径
+    Disable {
+        index: usize,
+        #[arg(short, long)] system: bool,
+        #[arg(short, long)] user: bool,
+    },
+    /// 从文件导入 PATH（JSON/CSV/TXT）
+    Import {
+        file: String,
+        #[arg(long, default_value = "both")] target: String,
+    },
+    /// 导出 PATH 为文件
+    Export {
+        #[arg(long, default_value = "json")] format: String,
+        #[arg(short, long)] output: Option<String>,
+    },
+    /// 创建注册表备份
+    Backup,
     /// 检测可执行文件冲突
     Conflicts { #[arg(long)] json: bool },
-    /// 列出 PATH 中可执行文件
+    /// 列出 PATH 目录中的可执行文件
     Scan {
         #[arg(long)] query: Option<String>,
         #[arg(long)] json: bool,
     },
+    /// 检查管理员权限
+    CheckAdmin { #[arg(long)] json: bool },
     /// 管理配置文件
     #[command(subcommand)]
     Profile(ProfileCmd),
-    /// 检查管理员权限
-    CheckAdmin { #[arg(long)] json: bool },
 }
 
 #[derive(Subcommand)]
@@ -65,6 +114,21 @@ fn pick_target(system: bool, _user: bool) -> &'static str {
     if system { "system" } else { "user" }
 }
 
+type SaveFn = fn(Vec<String>) -> Result<(), String>;
+
+fn load_and_save(system: bool, f: impl FnOnce(Vec<String>) -> Vec<String>) {
+    let target = pick_target(system, false);
+    let (list, save): (Vec<String>, SaveFn) = if target == "system" {
+        (core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e)),
+         core::registry::save_system_paths)
+    } else {
+        (core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e)),
+         core::registry::save_user_paths)
+    };
+    let new_list = f(list);
+    save(new_list).unwrap_or_else(|e| exit_err(&e));
+}
+
 // ── 命令实现 ──
 
 fn cmd_list(system: bool, user: bool, json_out: bool) {
@@ -93,34 +157,146 @@ fn cmd_list(system: bool, user: bool, json_out: bool) {
 
 fn cmd_add(path: String, system: bool, user: bool) {
     let target = pick_target(system, user);
-    let (mut list, save_fn): (Vec<String>, _) = if target == "system" {
-        (core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e)),
-         core::registry::save_system_paths as fn(Vec<String>) -> Result<(), String>)
-    } else {
-        (core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e)),
-         core::registry::save_user_paths as fn(Vec<String>) -> Result<(), String>)
-    };
-    list.push(path.clone());
-    save_fn(list).unwrap_or_else(|e| exit_err(&e));
+    load_and_save(system || false, |mut list| {
+        list.push(path.clone());
+        list
+    });
     let label = if target == "system" { "系统" } else { "用户" };
     println!("已添加到{} PATH: {path}", label);
 }
 
 fn cmd_remove(index: usize, system: bool) {
     let target = pick_target(system, false);
-    let (mut list, save_fn): (Vec<String>, _) = if target == "system" {
-        (core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e)),
-         core::registry::save_system_paths as fn(Vec<String>) -> Result<(), String>)
+    let mut list = if target == "system" {
+        core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e))
     } else {
-        (core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e)),
-         core::registry::save_user_paths as fn(Vec<String>) -> Result<(), String>)
+        core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e))
     };
     if index >= list.len() { exit_err(&format!("索引 {index} 超出范围 (共 {} 条)", list.len())); }
     let removed = list.remove(index);
-    save_fn(list).unwrap_or_else(|e| exit_err(&e));
+    let save: SaveFn = if target == "system" { core::registry::save_system_paths } else { core::registry::save_user_paths };
+    save(list).unwrap_or_else(|e| exit_err(&e));
     println!("已删除: {removed}");
 }
 
+fn cmd_edit(index: usize, new_path: String, system: bool) {
+    let target = pick_target(system, false);
+    let mut list = if target == "system" {
+        core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e))
+    } else {
+        core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e))
+    };
+    if index >= list.len() { exit_err(&format!("索引 {index} 超出范围 (共 {} 条)", list.len())); }
+    let old = std::mem::replace(&mut list[index], new_path.clone());
+    let save: SaveFn = if target == "system" { core::registry::save_system_paths } else { core::registry::save_user_paths };
+    save(list).unwrap_or_else(|e| exit_err(&e));
+    println!("已编辑: {old} → {new_path}");
+}
+
+fn cmd_move(index: usize, steps: usize, system: bool, up: bool) {
+    load_and_save(system || false, |mut list| {
+        if index >= list.len() { exit_err(&format!("索引 {index} 超出范围 (共 {} 条)", list.len())); }
+        let end = if up {
+            if steps > index { 0 } else { index - steps }
+        } else {
+            let max = list.len() - 1;
+            if index + steps > max { max } else { index + steps }
+        };
+        let removed = list.remove(index);
+        list.insert(end, removed);
+        list
+    });
+    let dir = if up { "上移" } else { "下移" };
+    println!("{dir} {steps} 格完成");
+}
+
+fn cmd_clean(system: bool, user: bool, dry_run: bool, json_out: bool) {
+    let target = pick_target(system, user);
+    let list = if target == "system" {
+        core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e))
+    } else {
+        core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e))
+    };
+    let (kept, removed) = core::registry::clean_paths(list);
+
+    if json_out {
+        println!("{}", json!({ "kept": kept, "removed": removed, "kept_count": kept.len(), "removed_count": removed.len() }).to_string());
+    } else if dry_run {
+        println!("═══ 将被移除（{} 条）═══", removed.len());
+        for r in &removed { println!("  ✗ {}", r); }
+        println!("═══ 将保留（{} 条）═══", kept.len());
+        for k in &kept { println!("  ✓ {}", k); }
+    } else {
+        let kept_count = kept.len();
+        let save: SaveFn = if target == "system" { core::registry::save_system_paths } else { core::registry::save_user_paths };
+        save(kept).unwrap_or_else(|e| exit_err(&e));
+        println!("清理完成：移除 {} 条，保留 {} 条", removed.len(), kept_count);
+        if !removed.is_empty() {
+            for r in &removed { println!("  已移除: {}", r); }
+        }
+    }
+}
+
+fn cmd_toggle(index: usize, system: bool, user: bool, enable: bool) {
+    let target = pick_target(system, user);
+    let list = if target == "system" {
+        core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e))
+    } else {
+        core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e))
+    };
+    if index >= list.len() { exit_err(&format!("索引 {index} 超出范围 (共 {} 条)", list.len())); }
+    let path = &list[index];
+
+    let (mut sys_dis, mut usr_dis) = core::disabled::load_disabled_state().unwrap_or_else(|_| (vec![], vec![]));
+    let target_list: &mut Vec<String> = if target == "system" { &mut sys_dis } else { &mut usr_dis };
+
+    if enable {
+        target_list.retain(|p| p != path);
+    } else if !target_list.contains(path) {
+        target_list.push(path.clone());
+    }
+    core::disabled::save_disabled_state(sys_dis, usr_dis).unwrap_or_else(|e| exit_err(&e));
+    let action = if enable { "启用" } else { "禁用" };
+    println!("已{action}: {path}");
+}
+
+fn cmd_import(file: String, target: String) {
+    let content = core::fs::read_text_file(&file).unwrap_or_else(|e| exit_err(&e));
+    let (sys, usr) = core::fs::import_paths(&file, &content).unwrap_or_else(|e| exit_err(&e));
+    match target.as_str() {
+        "system" => {
+            core::registry::save_system_paths(sys).unwrap_or_else(|e| exit_err(&e));
+            println!("已导入到系统 PATH");
+        }
+        "user" => {
+            core::registry::save_user_paths(usr).unwrap_or_else(|e| exit_err(&e));
+            println!("已导入到用户 PATH");
+        }
+        _ => {
+            core::registry::save_system_paths(sys).unwrap_or_else(|e| exit_err(&e));
+            core::registry::save_user_paths(usr).unwrap_or_else(|e| exit_err(&e));
+            println!("已导入到系统 + 用户 PATH");
+        }
+    }
+}
+
+fn cmd_export(format: String, output: Option<String>) {
+    let sys = core::registry::load_system_paths().unwrap_or_else(|e| exit_err(&e));
+    let usr = core::registry::load_user_paths().unwrap_or_else(|e| exit_err(&e));
+    let content = core::fs::export_paths(&sys, &usr, &format);
+    if let Some(path) = output {
+        std::fs::write(&path, &content).unwrap_or_else(|e| exit_err(&format!("无法写入文件: {e}")));
+        println!("已导出到: {path}");
+    } else {
+        println!("{content}");
+    }
+}
+
+fn cmd_backup() {
+    let path = core::backup::backup_registry(None).unwrap_or_else(|e| exit_err(&e));
+    println!("备份已保存: {path}");
+}
+
 fn cmd_conflicts(json_out: bool) {
     let mut paths: Vec<String> = vec![];
     if let Ok(sys) = core::registry::load_system_paths() { paths.extend(sys); }
@@ -216,6 +392,15 @@ fn main() {
         Command::List { system, user, json } => cmd_list(system, user, json),
         Command::Add { path, system, user } => cmd_add(path, system, user),
         Command::Remove { index, system } => cmd_remove(index, system),
+        Command::Edit { index, new_path, system } => cmd_edit(index, new_path, system),
+        Command::MoveUp { index, steps, system } => cmd_move(index, steps, system, true),
+        Command::MoveDown { index, steps, system } => cmd_move(index, steps, system, false),
+        Command::Clean { system, user, dry_run, json } => cmd_clean(system, user, dry_run, json),
+        Command::Enable { index, system, user } => cmd_toggle(index, system, user, true),
+        Command::Disable { index, system, user } => cmd_toggle(index, system, user, false),
+        Command::Import { file, target } => cmd_import(file, target),
+        Command::Export { format, output } => cmd_export(format, output),
+        Command::Backup => cmd_backup(),
         Command::Conflicts { json } => cmd_conflicts(json),
         Command::Scan { query, json } => cmd_scan(query, json),
         Command::CheckAdmin { json } => cmd_check_admin(json),
diff --git a/core/src/fs.rs b/core/src/fs.rs
index 7ab2788..aedd18d 100644
--- a/core/src/fs.rs
+++ b/core/src/fs.rs
@@ -2,3 +2,105 @@
 pub fn read_text_file(path: &str) -> Result<String, String> {
     std::fs::read_to_string(path).map_err(|e| format!("无法读取文件: {}", e))
 }
+
+/// 导入路径文件（JSON / CSV / TXT），返回 (系统路径, 用户路径)
+pub fn import_paths(path: &str, content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    let ext = std::path::Path::new(path)
+        .extension()
+        .map(|e| e.to_ascii_lowercase())
+        .unwrap_or_default();
+    let ext = ext.to_string_lossy();
+
+    match ext.as_ref() {
+        "json" => import_json(content),
+        "csv" => import_csv(content),
+        "txt" => import_txt(content),
+        _ => Err(format!("不支持的格式: .{}", ext)),
+    }
+}
+
+fn import_json(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    #[derive(serde::Deserialize)]
+    struct ImportData {
+        #[serde(default)]
+        system: Vec<String>,
+        #[serde(default)]
+        user: Vec<String>,
+    }
+    let data: ImportData =
+        serde_json::from_str(content).map_err(|e| format!("JSON 解析失败: {}", e))?;
+    Ok((data.system, data.user))
+}
+
+fn import_csv(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    let mut sys = Vec::new();
+    let mut usr = Vec::new();
+    for line in content.lines() {
+        let fields: Vec<&str> = line.split(',').collect();
+        if fields.len() >= 2 {
+            match fields[0].trim() {
+                "system" | "sys" => sys.push(fields[1].trim().to_string()),
+                "user" | "usr" => usr.push(fields[1].trim().to_string()),
+                _ => {}
+            }
+        }
+    }
+    if sys.is_empty() && usr.is_empty() {
+        return Err("CSV 文件中未找到有效路径".into());
+    }
+    Ok((sys, usr))
+}
+
+fn import_txt(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    let paths: Vec<String> = content
+        .lines()
+        .map(|l| l.trim().to_string())
+        .filter(|l| !l.is_empty() && !l.starts_with('#'))
+        .collect();
+    if paths.is_empty() {
+        return Err("TXT 文件中未找到路径".into());
+    }
+    // TXT 格式全部导入为用户路径
+    Ok((vec![], paths))
+}
+
+/// 导出 PATH 为指定格式字符串
+pub fn export_paths(sys: &[String], usr: &[String], format: &str) -> String {
+    match format {
+        "json" => {
+            let data = serde_json::json!({
+                "version": "5.0.0",
+                "timestamp": chrono::Local::now().format("%Y-%m-%dT%H:%M:%S").to_string(),
+                "system": sys,
+                "user": usr,
+            });
+            serde_json::to_string_pretty(&data).unwrap_or_default()
+        }
+        "csv" => {
+            let mut out = String::from("type,path\n");
+            for p in sys {
+                out.push_str(&format!("system,{}\n", p));
+            }
+            for p in usr {
+                out.push_str(&format!("user,{}\n", p));
+            }
+            out
+        }
+        _ => {
+            let mut out = String::new();
+            if !sys.is_empty() {
+                out.push_str(&format!("# 系统 PATH ({})\n", sys.len()));
+                for p in sys {
+                    out.push_str(&format!("{}\n", p));
+                }
+            }
+            if !usr.is_empty() {
+                out.push_str(&format!("# 用户 PATH ({})\n", usr.len()));
+                for p in usr {
+                    out.push_str(&format!("{}\n", p));
+                }
+            }
+            out
+        }
+    }
+}
diff --git a/core/src/registry.rs b/core/src/registry.rs
index fa20723..bd0c947 100644
--- a/core/src/registry.rs
+++ b/core/src/registry.rs
@@ -81,6 +81,29 @@ fn join_path(paths: &[String]) -> String {
         .join(";")
 }
 
+/// 清理路径列表：移除不存在的目录 + 重复路径（保留首次出现）
+/// 返回 (保留的路径, 被移除的路径)
+pub fn clean_paths(paths: Vec<String>) -> (Vec<String>, Vec<String>) {
+    use std::collections::HashSet;
+    let mut seen: HashSet<String> = HashSet::new();
+    let mut kept = Vec::new();
+    let mut removed = Vec::new();
+    for p in paths {
+        let key = p.trim().to_lowercase();
+        if seen.contains(&key) {
+            removed.push(p);
+            continue;
+        }
+        seen.insert(key);
+        if !p.contains('%') && !std::path::Path::new(&p).is_dir() {
+            removed.push(p);
+            continue;
+        }
+        kept.push(p);
+    }
+    (kept, removed)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;