diff --git a/qt5-qtbase.spec b/qt5-qtbase.spec
index 718af6a0efc03e8b4fe77b394a573fb09dfbcced..ff35a36cec8dd2718698ebc7d9b9b1647b8098c8 100644
--- a/qt5-qtbase.spec
+++ b/qt5-qtbase.spec
@@ -27,7 +27,7 @@
 Summary: Qt5 - QtBase components
 Name:    qt5-qtbase
 Version: 5.15.11
-Release: 9%{?dist}
+Release: 11%{?dist}
 License: LGPL-3.0-only OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 Url:     http://qt-project.org/
 %global  majmin %(echo %{version} | cut -d. -f1-2)
@@ -62,6 +62,7 @@ Patch3020: CVE-2023-51714.diff
 Patch3021: qtbase-5.15.11-add-loongarch64-support-for-Double-Conversion.patch
 Patch3022: CVE-2024-39936-qtbase-5.15.patch
 Patch3023: CVE-2025-5455-qtbase-5.15.patch
+Patch3024: qtbase-5.15.11-add-support-for-loongarch64.patch
 %if 0%{?use_clang}
 BuildRequires: clang >= 3.7.0
 %else
@@ -823,6 +824,10 @@ fi
 
 
 %changelog
+* Tue Sep 9 2025 doupengda <doupengda@loongson.cn> - 5.15.11-11
+- [Type] other
+- [DESC] add support for loongarch64
+
 * Mon Jun 30 2025 xiaoyunzhao <xiaoyunzhao@tencent.com>  - 5.15.11-9
 - [Type] Security
 - [DESC] fix CVE-2025-5455
diff --git a/qtbase-5.15.11-add-support-for-loongarch64.patch b/qtbase-5.15.11-add-support-for-loongarch64.patch
new file mode 100644
index 0000000000000000000000000000000000000000..29018d6cf39ab94e26f0a58f27db5d578593cdb1
--- /dev/null
+++ b/qtbase-5.15.11-add-support-for-loongarch64.patch
@@ -0,0 +1,41 @@
+From d91d5d9480c480930bc780b4a24463cdd404a7f2 Mon Sep 17 00:00:00 2001
+From: doupengda <doupengda@loongson.cn>
+Date: Tue, 9 Sep 2025 09:34:37 +0800
+Subject: [PATCH] qtbase-5.15.11 add support for loongarch64
+
+---
+ src/corelib/global/archdetect.cpp        | 2 ++
+ src/corelib/global/qprocessordetection.h | 4 ++++
+ 2 files changed, 6 insertions(+)
+
+diff --git a/src/corelib/global/archdetect.cpp b/src/corelib/global/archdetect.cpp
+index 1d00b7f5..cbea45ee 100644
+--- a/src/corelib/global/archdetect.cpp
++++ b/src/corelib/global/archdetect.cpp
+@@ -83,6 +83,8 @@
+ #  define ARCH_PROCESSOR "sparcv9"
+ #elif defined(Q_PROCESSOR_SPARC)
+ #  define ARCH_PROCESSOR "sparc"
++#elif defined(Q_PROCESSOR_LOONGARCH_64)
++#  define ARCH_PROCESSOR "loongarch64"
+ #else
+ #  define ARCH_PROCESSOR "unknown"
+ #endif
+diff --git a/src/corelib/global/qprocessordetection.h b/src/corelib/global/qprocessordetection.h
+index 8d657208..42ceface 100644
+--- a/src/corelib/global/qprocessordetection.h
++++ b/src/corelib/global/qprocessordetection.h
+@@ -223,6 +223,10 @@
+ #  define Q_PROCESSOR_WORDSIZE   8
+ // Q_BYTE_ORDER not defined, use endianness auto-detection
+ 
++#elif defined(__loongarch64)
++#  define Q_PROCESSOR_LOONGARCH_64
++#  define Q_PROCESSOR_WORDSIZE 8
++
+ /*
+     MIPS family, known revisions: I, II, III, IV, 32, 64
+ 
+-- 
+2.43.7
+