diff --git a/API_Device_RemoteMgmt_InterfaceTable.md b/API_Device_RemoteMgmt_InterfaceTable.md
index 81624fb..ab04f83 100644
--- a/API_Device_RemoteMgmt_InterfaceTable.md
+++ b/API_Device_RemoteMgmt_InterfaceTable.md
@@ -241,6 +241,8 @@ Response 200：`{"ok":true}`
 > 说明：该能力用于“启动/重启/关闭主程序（media-server）并选择加载哪个配置文件”。
 >
 > agent 启动 media-server 时会显式传入：`--config <resolved_config_path>`，因此不依赖 media-server 内部默认配置。
+>
+> 路径说明：`agent.media_server_process` 下的 `exec_path/work_dir/configs_dir/pid_file` 支持绝对或相对路径；若为相对路径，则以 agent 启动参数 `--config <agent_config_path>` 的**配置文件所在目录**为基准解析。
 
 ### 6.1 `POST /v1/media-server/start`
 用途：启动本机 media-server（若已运行则幂等返回 ok；若已运行但 config 不同则 409）。
@@ -252,6 +254,8 @@ Body（可选，JSON）：
 {"config":"cam1"}
 ```
 
+说明：若请求 body 非空，则必须带 `Content-Type: application/json`；若 body 为空，可不带该 header。
+
 `config` 解析规则：
 - 为空/缺省：使用 `agent.config_path`
 - 非空：只允许文件名/配置名（禁止包含 `/`、`\\`、`..`）；若不带扩展名自动补 `.json`；最终从 `agent.media_server_process.configs_dir` 下解析为 `<configs_dir>/<config>.json`
@@ -277,6 +281,8 @@ Body（可选，JSON）：
 {"config":"cam1"}
 ```
 
+说明：若请求 body 非空，则必须带 `Content-Type: application/json`；若 body 为空，可不带该 header。
+
 Response 200：
 ```json
 {"ok":true,"running":true,"pid":1234,"config_path":"/home/orangepi/Desktop/OrangePi3588Media/configs/cam1.json"}
diff --git a/agent/agent_cam1.config.json b/agent/agent_cam1.config.json
index 9ce3fab..38ecc95 100644
--- a/agent/agent_cam1.config.json
+++ b/agent/agent_cam1.config.json
@@ -16,10 +16,10 @@
     "config_path": "./test_cam1_strict_minio_alarm_rtsp_server.json",
     "media_server_process": {
       "enable": true,
-      "exec_path": "/home/orangepi/Desktop/OrangePi3588Media/build/media-server",
-      "work_dir": "/home/orangepi/Desktop/OrangePi3588Media",
-      "configs_dir": "/home/orangepi/Desktop/OrangePi3588Media/configs",
-      "pid_file": "/var/run/rk3588sys-media-server.pid",
+      "exec_path": "../build/media-server",
+      "work_dir": "..",
+      "configs_dir": "../configs",
+      "pid_file": "./rk3588sys-media-server.pid",
       "graceful_timeout_ms": 5000
     },
     "media_server_base_url": "http://127.0.0.1:9000",
diff --git a/agent/cmd/rk3588-agent/main.go b/agent/cmd/rk3588-agent/main.go
index c6c2c86..15e90d6 100644
--- a/agent/cmd/rk3588-agent/main.go
+++ b/agent/cmd/rk3588-agent/main.go
@@ -9,6 +9,7 @@ import (
 	"net/url"
 	"os"
 	"os/signal"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"sync"
@@ -65,7 +66,12 @@ func main() {
 	}
 	store := modelstore.New(cfg.Agent.ModelsDir, cfg.Agent.MaxUploadMB)
 
-	h := httpapi.New(cfg.Agent, ms, store, deviceID, agentPort, mediaPort, Version, GitSHA)
+	baseDir := filepath.Dir(*cfgPath)
+	if abs, err := filepath.Abs(*cfgPath); err == nil {
+		baseDir = filepath.Dir(abs)
+	}
+
+	h := httpapi.New(cfg.Agent, baseDir, ms, store, deviceID, agentPort, mediaPort, Version, GitSHA)
 
 	httpSrv := &http.Server{
 		Addr:              cfg.Agent.Listen,
diff --git a/agent/internal/httpapi/server.go b/agent/internal/httpapi/server.go
index 7911726..273efdf 100644
--- a/agent/internal/httpapi/server.go
+++ b/agent/internal/httpapi/server.go
@@ -49,10 +49,10 @@ type InfoResponse struct {
 	UptimeSec    int64  `json:"uptime_sec"`
 }
 
-func New(agentCfg config.AgentConfig, ms *mediaserver.Client, store *modelstore.Store, deviceID string, agentPort int, mediaPort int, version, gitSHA string) http.Handler {
+func New(agentCfg config.AgentConfig, baseDir string, ms *mediaserver.Client, store *modelstore.Store, deviceID string, agentPort int, mediaPort int, version, gitSHA string) http.Handler {
 	var pc *procctl.Controller
 	if agentCfg.MediaServerProcess.Enable {
-		pc = procctl.New(agentCfg)
+		pc = procctl.New(agentCfg, baseDir)
 	}
 	s := &Server{
 		agentCfg:  agentCfg,
diff --git a/agent/internal/procctl/procctl.go b/agent/internal/procctl/procctl.go
index 8b1e7af..5a337c6 100644
--- a/agent/internal/procctl/procctl.go
+++ b/agent/internal/procctl/procctl.go
@@ -37,11 +37,23 @@ type Controller struct {
 	defCfg string
 }
 
-func New(agentCfg config.AgentConfig) *Controller {
-	return &Controller{
-		proc:   agentCfg.MediaServerProcess,
-		defCfg: agentCfg.ConfigPath,
+func New(agentCfg config.AgentConfig, baseDir string) *Controller {
+	p := agentCfg.MediaServerProcess
+	if baseDir != "" {
+		if p.ExecPath != "" && !filepath.IsAbs(p.ExecPath) {
+			p.ExecPath = filepath.Join(baseDir, p.ExecPath)
+		}
+		if p.WorkDir != "" && !filepath.IsAbs(p.WorkDir) {
+			p.WorkDir = filepath.Join(baseDir, p.WorkDir)
+		}
+		if p.ConfigsDir != "" && !filepath.IsAbs(p.ConfigsDir) {
+			p.ConfigsDir = filepath.Join(baseDir, p.ConfigsDir)
+		}
+		if p.PidFile != "" && !filepath.IsAbs(p.PidFile) {
+			p.PidFile = filepath.Join(baseDir, p.PidFile)
+		}
 	}
+	return &Controller{proc: p, defCfg: agentCfg.ConfigPath}
 }
 
 func (c *Controller) Enabled() bool { return c != nil && c.proc.Enable }
@@ -76,6 +88,7 @@ func (c *Controller) Start(configName string) (Status, error) {
 	b, _ := json.Marshal(pf2)
 	b = append(b, '\n')
 	if err := files.WriteFileAtomic(c.proc.PidFile, b, 0o644); err != nil {
+		_ = stopProcess(pid, 1*time.Second)
 		return Status{}, fmt.Errorf("write pid file: %w", err)
 	}
 	return Status{Running: true, Pid: pid, ConfigPath: resolved}, nil
diff --git a/agent/rk3588-agent b/agent/rk3588-agent
index af5487d..623b697 100644
Binary files a/agent/rk3588-agent and b/agent/rk3588-agent differ