diff --git a/models/pull.go b/models/pull.go
index c73768841..69308abdf 100644
--- a/models/pull.go
+++ b/models/pull.go
@@ -69,6 +69,10 @@ type PullRequest struct {
 	MergedUnix     timeutil.TimeStamp `xorm:"updated INDEX"`
 
 	isHeadRepoLoaded bool `xorm:"-"`
+
+	// add configure
+	CommitNum    int
+	ChangedFiles int
 }
 
 // MustHeadUserName returns the HeadRepo's username if failed return blank
diff --git a/modules/convert/pull.go b/modules/convert/pull.go
index ad70eb5ca..2684c96fd 100644
--- a/modules/convert/pull.go
+++ b/modules/convert/pull.go
@@ -61,14 +61,17 @@ func ToAPIPullRequest(pr *models.PullRequest, doer *models.User) *api.PullReques
 		State:     apiIssue.State,
 		IsLocked:  apiIssue.IsLocked,
 		Comments:  apiIssue.Comments,
-		HTMLURL:   pr.Issue.HTMLURL(),
-		DiffURL:   pr.Issue.DiffURL(),
-		PatchURL:  pr.Issue.PatchURL(),
-		HasMerged: pr.HasMerged,
-		MergeBase: pr.MergeBase,
-		Deadline:  apiIssue.Deadline,
-		Created:   pr.Issue.CreatedUnix.AsTimePtr(),
-		Updated:   pr.Issue.UpdatedUnix.AsTimePtr(),
+
+		CommitNum:    pr.CommitNum,
+		ChangedFiles: pr.ChangedFiles,
+		HTMLURL:      pr.Issue.HTMLURL(),
+		DiffURL:      pr.Issue.DiffURL(),
+		PatchURL:     pr.Issue.PatchURL(),
+		HasMerged:    pr.HasMerged,
+		MergeBase:    pr.MergeBase,
+		Deadline:     apiIssue.Deadline,
+		Created:      pr.Issue.CreatedUnix.AsTimePtr(),
+		Updated:      pr.Issue.UpdatedUnix.AsTimePtr(),
 
 		Base: &api.PRBranchInfo{
 			Name:       pr.BaseBranch,
diff --git a/modules/structs/pull.go b/modules/structs/pull.go
index 653091b2f..4e81bab25 100644
--- a/modules/structs/pull.go
+++ b/modules/structs/pull.go
@@ -48,6 +48,9 @@ type PullRequest struct {
 	Updated *time.Time `json:"updated_at"`
 	// swagger:strfmt date-time
 	Closed *time.Time `json:"closed_at"`
+
+	CommitNum    int `json:"commit_num"`
+	ChangedFiles int `json:"changed_files"`
 }
 
 // PRBranchInfo information about a branch
diff --git a/routers/api/v1/repo/pull.go b/routers/api/v1/repo/pull.go
index ba8bf2cc5..58b3f4490 100644
--- a/routers/api/v1/repo/pull.go
+++ b/routers/api/v1/repo/pull.go
@@ -5,6 +5,7 @@
 package repo
 
 import (
+	"container/list"
 	"errors"
 	"fmt"
 	"math"
@@ -19,11 +20,15 @@ import (
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/notification"
+	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/api/v1/utils"
 	"code.gitea.io/gitea/services/forms"
+	"code.gitea.io/gitea/services/gitdiff"
+
+	pull_prepare "code.gitea.io/gitea/routers/web/repo"
 	issue_service "code.gitea.io/gitea/services/issue"
 	pull_service "code.gitea.io/gitea/services/pull"
 	repo_service "code.gitea.io/gitea/services/repository"
@@ -172,6 +177,68 @@ func GetPullRequest(ctx *context.APIContext) {
 		ctx.Error(http.StatusInternalServerError, "LoadHeadRepo", err)
 		return
 	}
+
+	// issue := checkPullInfo(ctx.Context)
+	issue := pr.Issue
+	if issue == nil {
+		ctx.NotFound()
+		return
+	}
+	if ctx.Written() {
+		return
+	}
+	pull := issue.PullRequest
+	// get pull commits nums
+	var commits *list.List
+	var prInfo *git.CompareInfo
+	if pull.HasMerged {
+		prInfo = pull_prepare.PrepareMergedViewPullInfo(ctx.Context, issue)
+	} else {
+		prInfo = pull_prepare.PrepareViewPullInfo(ctx.Context, issue)
+	}
+
+	if ctx.Written() {
+		return
+	} else if prInfo == nil {
+		ctx.NotFound("ViewPullCommits", nil)
+		return
+	}
+	var commitNum int
+	commits = prInfo.Commits
+	commits = models.ValidateCommitsWithEmails(commits)
+	commits = models.ParseCommitsWithSignature(commits, ctx.Repo.Repository)
+	commits = models.ParseCommitsWithStatus(commits, ctx.Repo.Repository)
+	commitNum = commits.Len()
+
+	//get pull changedfils
+	var (
+		// diffRepoPath  string
+		startCommitID string
+		endCommitID   string
+		gitRepo       = ctx.Repo.GitRepo
+	)
+	gitRepo = ctx.Repo.GitRepo
+	headCommitId, err := gitRepo.GetRefCommitID(pull.GetGitRefName())
+	if err != nil {
+		ctx.ServerError("GetRefCommitID", err)
+		return
+	}
+	startCommitID = prInfo.MergeBase
+	endCommitID = headCommitId
+	ctx.Data["WhitespaceBehavior"] = ""
+
+	diff, err := gitdiff.GetDiffRangeWithWhitespaceBehavior(gitRepo,
+		startCommitID, endCommitID, setting.Git.MaxGitDiffLines,
+		setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles,
+		gitdiff.GetWhitespaceFlag(ctx.Data["WhitespaceBehavior"].(string)))
+	if err != nil {
+		ctx.ServerError("GetDiffRangeWithWhitespaceBehavior", err)
+		return
+	}
+	var changedFiles int
+	changedFiles = diff.NumFiles
+	pr.CommitNum = commitNum
+	pr.ChangedFiles = changedFiles
 	ctx.JSON(http.StatusOK, convert.ToAPIPullRequest(pr, ctx.User))
 }
 
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index b05d62e43..9b9b208ec 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -2531,6 +2531,39 @@
         }
       }
     },
+    "/repos/{owner}/{repo}/branch_tag_count": {
+      "get": {
+        "produces": [
+          "application/json"
+        ],
+        "tags": [
+          "repository"
+        ],
+        "summary": "Get branche and tag of a repository",
+        "operationId": "repoBranchAndTagCountGet",
+        "parameters": [
+          {
+            "type": "string",
+            "description": "owner of the repo",
+            "name": "owner",
+            "in": "path",
+            "required": true
+          },
+          {
+            "type": "string",
+            "description": "name of the repo",
+            "name": "repo",
+            "in": "path",
+            "required": true
+          }
+        ],
+        "responses": {
+          "200": {
+            "$ref": "#/responses/RepoBranchAndTagCount"
+          }
+        }
+      }
+    },
     "/repos/{owner}/{repo}/branches": {
       "get": {
         "produces": [
@@ -16235,6 +16268,11 @@
           "type": "string",
           "x-go-name": "Body"
         },
+        "changed_files": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "ChangedFiles"
+        },
         "closed_at": {
           "type": "string",
           "format": "date-time",
@@ -16245,6 +16283,11 @@
           "format": "int64",
           "x-go-name": "Comments"
         },
+        "commit_num": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "CommitNum"
+        },
         "created_at": {
           "type": "string",
           "format": "date-time",
@@ -16616,6 +16659,22 @@
       },
       "x-go-package": "code.gitea.io/gitea/modules/structs"
     },
+    "RepoBranchAndTagCount": {
+      "type": "object",
+      "properties": {
+        "branch_count": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "BranchCount"
+        },
+        "tag_count": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "TagCount"
+        }
+      },
+      "x-go-package": "code.gitea.io/gitea/modules/structs"
+    },
     "RepoCommit": {
       "type": "object",
       "title": "RepoCommit contains information of a commit in the context of a repository.",
@@ -18111,6 +18170,15 @@
         }
       }
     },
+    "RepoBranchAndTagCount": {
+      "description": "RepoBranchAndTagCount",
+      "schema": {
+        "$ref": "#/definitions/RepoBranchAndTagCount"
+      },
+      "headers": {
+        "body": {}
+      }
+    },
     "Repository": {
       "description": "Repository",
       "schema": {