diff --git a/modules/structs/repo.go b/modules/structs/repo.go
index 6d3e2c2909267..9519991abe5a8 100644
--- a/modules/structs/repo.go
+++ b/modules/structs/repo.go
@@ -254,6 +254,16 @@ type CreateBranchRepoOption struct {
 	OldBranchName string `json:"old_branch_name" binding:"GitRefName;MaxSize(100)"`
 }
 
+// RenameBranchOption options when rename a branch in a repository
+// swagger:model
+type RenameBranchReopOption struct {
+	// Name of the branch after modified
+	//
+	// required: true
+	// unique: true
+	NewName string `json:"new_name" binding:"Required;GitRefName;MaxSize(100)"`
+}
+
 // TransferRepoOption options when transfer a repository's ownership
 // swagger:model
 type TransferRepoOption struct {
diff --git a/routers/api/v1/api.go b/routers/api/v1/api.go
index c3a875e737b6b..813bcb376b37d 100644
--- a/routers/api/v1/api.go
+++ b/routers/api/v1/api.go
@@ -915,6 +915,7 @@ func Routes(ctx gocontext.Context) *web.Route {
 					m.Get("/*", repo.GetBranch)
 					m.Delete("/*", reqToken(auth_model.AccessTokenScopeRepo), reqRepoWriter(unit.TypeCode), repo.DeleteBranch)
 					m.Post("", reqToken(auth_model.AccessTokenScopeRepo), reqRepoWriter(unit.TypeCode), bind(api.CreateBranchRepoOption{}), repo.CreateBranch)
+					m.Post("/{name}/rename", reqToken(auth_model.AccessTokenScopeRepo), reqRepoWriter(unit.TypeCode), bind(api.RenameBranchReopOption{}), repo.RenameBranch)
 				}, context.ReferencesGitRepo(), reqRepoReader(unit.TypeCode))
 				m.Group("/branch_protections", func() {
 					m.Get("", repo.ListBranchProtections)
diff --git a/routers/api/v1/repo/branch.go b/routers/api/v1/repo/branch.go
index dff47fbcf15b7..f5072a13feefa 100644
--- a/routers/api/v1/repo/branch.go
+++ b/routers/api/v1/repo/branch.go
@@ -300,6 +300,97 @@ func ListBranches(ctx *context.APIContext) {
 	ctx.JSON(http.StatusOK, apiBranches)
 }
 
+// RenameBranch rename a branch for a user's repository
+func RenameBranch(ctx *context.APIContext) {
+	// swagger:operation POST /repos/{owner}/{repo}/branches/{name}/rename repository repoRenameBranch
+	// ---
+	// summary: Rename a branch
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: name
+	//   in: path
+	//   description: original name of the branch
+	//   type: string
+	//   required: true
+	// - name: body
+	//   in: body
+	//   schema:
+	//     "$ref": "#/definitions/RenameBranchReopOption"
+	// responses:
+	//   "201":
+	//     "$ref": "#/responses/Branch"
+	//   "403":
+	// 	   description: Forbidden
+	//   "400":
+	//     description: Bad request(target exist, branch not exist,)
+	//   "409":
+	//     description: The branch with the same name already exists.
+
+	opt := web.GetForm(ctx).(*api.RenameBranchReopOption)
+	if ctx.Repo.Repository.IsEmpty {
+		ctx.Error(http.StatusNotFound, "", "Git Repository is empty.")
+		return
+	}
+
+	if !ctx.Repo.CanCreateBranch() {
+		ctx.Error(http.StatusForbidden, "", "Access Forbidden")
+		return
+	}
+
+	if ctx.HasError() {
+		ctx.Error(http.StatusInternalServerError, "", ctx.GetErrMsg())
+		return
+	}
+
+	msg, err := repo_service.RenameBranch(ctx.Repo.Repository, ctx.Doer, ctx.Repo.GitRepo, ctx.Params("name"), opt.NewName)
+	if msg != "" {
+		ctx.Error(http.StatusBadRequest, "", msg)
+		return
+	}
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "", err)
+	}
+
+	branch, err := ctx.Repo.GitRepo.GetBranch(opt.NewName)
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "GetBranch", err)
+		return
+	}
+
+	commit, err := branch.GetCommit()
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "GetCommit", err)
+		return
+	}
+
+	bp, err := git_model.GetFirstMatchProtectedBranchRule(ctx, ctx.Repo.Repository.ID, branch.Name)
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "GetFirstMatchProtectedBranchRule", err)
+		return
+	}
+
+	br, err := convert.ToBranch(ctx, ctx.Repo.Repository, branch, commit, bp, ctx.Doer, ctx.Repo.IsAdmin())
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "convert.ToBranch", err)
+		return
+	}
+
+	ctx.JSON(http.StatusCreated, br)
+}
+
 // GetBranchProtection gets a branch protection
 func GetBranchProtection(ctx *context.APIContext) {
 	// swagger:operation GET /repos/{owner}/{repo}/branch_protections/{name} repository repoGetBranchProtection
diff --git a/routers/api/v1/swagger/options.go b/routers/api/v1/swagger/options.go
index 0c8d3d353feca..f6dc044bafd9c 100644
--- a/routers/api/v1/swagger/options.go
+++ b/routers/api/v1/swagger/options.go
@@ -133,6 +133,9 @@ type swaggerParameterBodies struct {
 	// in:body
 	CreateBranchRepoOption api.CreateBranchRepoOption
 
+	// in:body
+	RenameBranchReopOption api.RenameBranchReopOption
+
 	// in:body
 	CreateBranchProtectionOption api.CreateBranchProtectionOption
 
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index ddcdc94b81c54..4c384afd50292 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -3298,6 +3298,65 @@
         }
       }
     },
+    "/repos/{owner}/{repo}/branches/{name}/rename": {
+      "post": {
+        "consumes": [
+          "application/json"
+        ],
+        "produces": [
+          "application/json"
+        ],
+        "tags": [
+          "repository"
+        ],
+        "summary": "Rename a branch",
+        "operationId": "repoRenameBranch",
+        "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
+          },
+          {
+            "type": "string",
+            "description": "original name of the branch",
+            "name": "name",
+            "in": "path",
+            "required": true
+          },
+          {
+            "name": "body",
+            "in": "body",
+            "schema": {
+              "$ref": "#/definitions/RenameBranchReopOption"
+            }
+          }
+        ],
+        "responses": {
+          "201": {
+            "$ref": "#/responses/Branch"
+          },
+          "400": {
+            "description": "Bad request(target exist, branch not exist,)"
+          },
+          "403": {
+            "description": "Forbidden"
+          },
+          "409": {
+            "description": "The branch with the same name already exists."
+          }
+        }
+      }
+    },
     "/repos/{owner}/{repo}/collaborators": {
       "get": {
         "produces": [
@@ -19256,6 +19315,22 @@
       },
       "x-go-package": "code.gitea.io/gitea/modules/structs"
     },
+    "RenameBranchReopOption": {
+      "description": "RenameBranchOption options when rename a branch in a repository",
+      "type": "object",
+      "required": [
+        "new_name"
+      ],
+      "properties": {
+        "new_name": {
+          "description": "Name of the branch after modified",
+          "type": "string",
+          "uniqueItems": true,
+          "x-go-name": "NewName"
+        }
+      },
+      "x-go-package": "code.gitea.io/gitea/modules/structs"
+    },
     "RenameUserOption": {
       "description": "RenameUserOption options when renaming a user",
       "type": "object",
@@ -21383,4 +21458,4 @@
       "TOTPHeader": []
     }
   ]
-}
+}
\ No newline at end of file