diff --git a/firmware/application/src/rfid/nfctag/tag_emulation.c b/firmware/application/src/rfid/nfctag/tag_emulation.c
index b65da99..800b328 100644
--- a/firmware/application/src/rfid/nfctag/tag_emulation.c
+++ b/firmware/application/src/rfid/nfctag/tag_emulation.c
@@ -7,6 +7,7 @@
 #include "fds_util.h"
 #include "tag_emulation.h"
 #include "tag_persistence.h"
+#include "rgb_marquee.h"
 
 
 #define NRF_LOG_MODULE_NAME tag_emu
@@ -458,6 +459,7 @@ uint8_t tag_emulation_get_slot(void) {
  */
 void tag_emulation_set_slot(uint8_t index) {
     slotConfig.config.activated = index;    // 重设到新切换的卡槽上
+    rgb_marquee_reset(); // force animation color refresh according to new slot
 }
 
 /**
diff --git a/firmware/application/src/rgb_marquee.c b/firmware/application/src/rgb_marquee.c
index 9003982..335983b 100644
--- a/firmware/application/src/rgb_marquee.c
+++ b/firmware/application/src/rgb_marquee.c
@@ -50,6 +50,12 @@ void rgb_marquee_stop(void){
 	ledblink1_step = 0;
 }
 
+// reset RGB state machines to force a refresh of the LED color
+void rgb_marquee_reset(void){
+	ledblink6_step = 0;
+	ledblink1_step = 0;
+}
+
 // 亮度转PWM值
 uint16_t get_pwmduty(uint8_t light_level){
     return PWM_MAX-(PWM_MAX*pow(((double)light_level/LIGHT_LEVEL_MAX),2.2));
diff --git a/firmware/application/src/rgb_marquee.h b/firmware/application/src/rgb_marquee.h
index a6702ff..0af8a41 100644
--- a/firmware/application/src/rgb_marquee.h
+++ b/firmware/application/src/rgb_marquee.h
@@ -7,6 +7,7 @@
 
 void rgb_marquee_init(void);
 void rgb_marquee_stop(void);
+void rgb_marquee_reset(void);
 bool is_rgb_marquee_enable(void);
 void ledblink1(uint8_t color,uint8_t dir);
 void ledblink2(uint8_t color,uint8_t dir, uint8_t end);