diff --git a/0001-update-model-name-length-limit-to-50.patch b/0001-update-model-name-length-limit-to-50.patch
new file mode 100644
index 0000000..bf1b66f
--- /dev/null
+++ b/0001-update-model-name-length-limit-to-50.patch
@@ -0,0 +1,25 @@
+From 45d36577d0006175f3a4669f2e1308e18e687e38 Mon Sep 17 00:00:00 2001
+From: root <root@localhost.localdomain>
+Date: Fri, 2 Dec 2022 20:21:42 +0800
+Subject: [PATCH] update model name length limit to 50
+
+---
+ diana/database/factory/table.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/diana/database/factory/table.py b/diana/database/factory/table.py
+index ef827f1..dbb7a49 100644
+--- a/diana/database/factory/table.py
++++ b/diana/database/factory/table.py
+@@ -77,7 +77,7 @@ class Model(Base, MyBase):
+     __tablename__ = "model"
+ 
+     model_id = Column(String(32), primary_key=True, nullable=False)
+-    model_name = Column(String(20), nullable=False)
++    model_name = Column(String(50), nullable=False)
+     tag = Column(String(255), nullable=True)
+     algo_id = Column(String(32), ForeignKey(
+         'algorithm.algo_id'), nullable=False)
+-- 
+2.33.0
+
diff --git a/aops-diana.spec b/aops-diana.spec
index 40b64f2..bf823a7 100644
--- a/aops-diana.spec
+++ b/aops-diana.spec
@@ -1,10 +1,11 @@
 Name:		aops-diana
 Version:	v1.1.1
-Release:	1
+Release:	2
 Summary:	An intelligent abnormal detection framework of aops
 License:	MulanPSL2
 URL:		https://gitee.com/openeuler/%{name}
 Source0:	%{name}-%{version}.tar.gz
+Patch0001:	0001-update-model-name-length-limit-to-50.patch	
 
 BuildRequires:  python3-setuptools
 Requires:   aops-vulcanus >= v1.0.0
@@ -21,7 +22,7 @@ An intelligent abnormal detection framework of aops
 
 
 %prep
-%autosetup -n %{name}-%{version}
+%autosetup -n %{name}-%{version} -p1
 
 
 # build for aops-diana
@@ -49,6 +50,9 @@ An intelligent abnormal detection framework of aops
 
 
 %changelog
+* Fri Dec 2 2022 zhuyuncheng<zhuyuncheng@huawei.com> - v1.1.1-2
+- Add patch to change model name length limit from 20 to 50 in mysql table
+
 * Fri Dec 2 2022 zhuyuncheng<zhuyuncheng@huawei.com> - v1.1.1-1
 - Fix wrong model config path