diff --git a/backend/domain/ast.go b/backend/domain/ast.go
new file mode 100644
index 0000000..1050de2
--- /dev/null
+++ b/backend/domain/ast.go
@@ -0,0 +1,12 @@
+package domain
+type ParseResult struct {
+	FilePath   string `json:"file_path"`
+	Definition string `json:"definition"` 
+	Error      string `json:"error,omitempty"` 
+	Success    bool   `json:"success"`
+}
+type SaveAstReq struct { 
+	UserID    string   `json:"user_id" validate:"required"` 
+	ProjectID string   `json:"project_id" validate:"required"`
+	Files     []string `json:"files" validate:"required"`
+}
\ No newline at end of file
diff --git a/backend/domain/workspace.go b/backend/domain/workspace.go
index 58da027..a96f19d 100644
--- a/backend/domain/workspace.go
+++ b/backend/domain/workspace.go
@@ -14,6 +14,7 @@ type WorkspaceFileUsecase interface {
 	Create(ctx context.Context, req *CreateWorkspaceFileReq) (*WorkspaceFile, error)
 	Update(ctx context.Context, req *UpdateWorkspaceFileReq) (*WorkspaceFile, error)
 	Delete(ctx context.Context, id string) error
+	GetAndSave(ctx context.Context, req *SaveAstReq) error 
 	GetByID(ctx context.Context, id string) (*WorkspaceFile, error)
 	GetByPath(ctx context.Context, userID, workspaceID, path string) (*WorkspaceFile, error)
 	List(ctx context.Context, req *ListWorkspaceFileReq) (*ListWorkspaceFileResp, error)
@@ -22,6 +23,7 @@ type WorkspaceFileUsecase interface {
 	Sync(ctx context.Context, req *SyncWorkspaceFileReq) (*SyncWorkspaceFileResp, error)
 }
 
+
 // WorkspaceFileRepo 定义 WorkspaceFile 数据访问接口
 type WorkspaceFileRepo interface {
 	Create(ctx context.Context, req *CreateWorkspaceFileReq) (*db.WorkspaceFile, error)
diff --git a/backend/internal/workspace/handler/http/v1/workspace.go b/backend/internal/workspace/handler/http/v1/workspace.go
index bda4066..4b14088 100644
--- a/backend/internal/workspace/handler/http/v1/workspace.go
+++ b/backend/internal/workspace/handler/http/v1/workspace.go
@@ -92,6 +92,21 @@ func (h *WorkspaceFileHandler) GetByID(c *web.Context, req struct {
 	return c.Success(file)
 }
 
+// GetAndSave 
+//  @Tags			WorkspaceFile
+//  @Summary		获取并保存工作区文件
+//	@param ctx 
+//	@param req 
+//	@return error 
+func (h *WorkspaceFileHandler) GetAndSave(ctx *web.Context, req *domain.SaveAstReq) error {
+	err := h.usecase.GetAndSave(ctx.Request().Context(), req) 
+	if err != nil {
+		h.logger.Error("failed to get and save workspace files", "error", err, "count", len(req.Files))
+		return err 
+	}
+	return ctx.Success(nil) 
+}
+
 // Update 更新工作区文件
 //
 //	@Tags			WorkspaceFile
diff --git a/backend/internal/workspace/usecase/workspace.go b/backend/internal/workspace/usecase/workspace.go
index 16b281b..3988fb7 100644
--- a/backend/internal/workspace/usecase/workspace.go
+++ b/backend/internal/workspace/usecase/workspace.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/sha256"
 	"encoding/hex"
+	"encoding/json"
 	"fmt"
 	"log/slog"
 	"strings"
@@ -11,6 +12,7 @@ import (
 	"github.com/chaitin/MonkeyCode/backend/config"
 	"github.com/chaitin/MonkeyCode/backend/db"
 	"github.com/chaitin/MonkeyCode/backend/domain"
+	"github.com/chaitin/MonkeyCode/backend/pkg/cli"
 	"github.com/chaitin/MonkeyCode/backend/pkg/cvt"
 )
 
@@ -121,6 +123,31 @@ func (u *WorkspaceFileUsecase) GetByID(ctx context.Context, id string) (*domain.
 	return cvt.From(file, &domain.WorkspaceFile{}), nil
 }
 
+func (u *WorkspaceFileUsecase) GetAndSave(ctx context.Context, req *domain.SaveAstReq) (error) { 
+	results, err := cli.RunParseCLI("parse", "", req.Files...) 
+	if err != nil {
+		return err 
+	} 
+	for _, res := range results {
+		file, err := u.repo.GetByPath(ctx, req.UserID, req.ProjectID, res.FilePath) 
+		if err != nil {
+			return err 
+		} 
+
+		astData, err := json.Marshal(res.Definition) 
+		if err != nil {
+			return err 
+		} 
+		_, err = u.repo.Update(ctx, file.ID.String(), func(up *db.WorkspaceFileUpdateOne) error {
+			return up.SetContent(string(astData)).Exec(ctx)
+		})
+		if err != nil {
+			return err 
+		}
+	}
+	return nil 
+}
+
 func (u *WorkspaceFileUsecase) GetByPath(ctx context.Context, userID, workspaceID, path string) (*domain.WorkspaceFile, error) {
 	file, err := u.repo.GetByPath(ctx, userID, workspaceID, path)
 	if err != nil {
diff --git a/backend/pkg/cli/cli.go b/backend/pkg/cli/cli.go
new file mode 100644
index 0000000..f44a6d1
--- /dev/null
+++ b/backend/pkg/cli/cli.go
@@ -0,0 +1,33 @@
+package cli
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/chaitin/MonkeyCode/backend/domain"
+)
+
+// RunParseCLI
+//  @Description          ctcode-cli 支持通过 CLI 的方式获取文件的 AST 信息
+//	@param command        ["parse"] - 解析文件为 AST 树
+//	@param flag           ["-s", "--successOnly"] - 是否只返回成功的结果
+//	@param paths          要解析的文件路径
+//	@return []ParseResult 解析结果数组
+//	@return error         错误信息
+func RunParseCLI(command string, flag string, paths ...string) ([]domain.ParseResult, error) {
+	cmd := exec.Command("ctcode-cli", command, flag, strings.Join(paths, " "))
+	cmd.Env = os.Environ() 
+	output, err := cmd.CombinedOutput()
+	fmt.Printf(`err: %s, output: %s\n`, fmt.Sprint(err), string(output))
+	if err != nil {
+		return []domain.ParseResult{}, err
+	}
+	var results []domain.ParseResult
+	if err := json.Unmarshal(output, &results); err != nil {
+		panic(err)
+	}
+	return results, nil
+}