diff --git a/en/device-dev/subsystems/subsys-security-overview.md b/en/device-dev/subsystems/subsys-security-overview.md
index f4e17ed0818e37519cfe6c1b6a1cb8122af5666f..2ed46817e0066bed27c8f3be692451efb43a20b6 100644
--- a/en/device-dev/subsystems/subsys-security-overview.md
+++ b/en/device-dev/subsystems/subsys-security-overview.md
@@ -20,6 +20,10 @@ The OpenHarmony security subsystem provides security capabilities that make your
 
   The Device Security Level Management (DSLM) module is introduced to manage the security levels of OpenHarmony devices. When different types of user data are hopped or processed in OpenHarmony distributed services, the DSLM APIs can be called to obtain the security levels of related devices for subsequent processing.
 
+- HUKS
+
+  The OpenHarmony Universal Keystore (HUKS) provides system-level key management capabilities, ensuring secure management and use of keys throughout their entire lifecycle (generation, storage, use, and destruction). Applications can call the APIs provided by the HUKS module to perform operations on keys. In addition, the keys in plaintext must be used in a trusted execution environment (TEE).
+
 
 ## Basic Concepts