diff --git a/src/lib/ical-io.js b/src/lib/ical-io.js
index 498c62d..606c902 100644
--- a/src/lib/ical-io.js
+++ b/src/lib/ical-io.js
@@ -1,5 +1,6 @@
 import ICAL from 'ical.js'
 import { pad2, parseISODate } from './date.js'
+import { genUUID } from './uuid.js'
 
 // ------------------------------------------------------------------ //
 // 时区注册 (ical.js 不内置 IANA 时区)
@@ -77,7 +78,7 @@ function parseEvent(veventComp) {
   if (dtstamp) _raw.dtstamp = dtstamp.toICALString()
 
   return {
-    uid: veventComp.getFirstPropertyValue('uid') || '',
+    uid: veventComp.getFirstPropertyValue('uid') || genUUID(),
     summary: veventComp.getFirstPropertyValue('summary') || '',
     location: veventComp.getFirstPropertyValue('location') || '',
     description: veventComp.getFirstPropertyValue('description') || '',