diff --git a/vnpy/trader/event.py b/vnpy/trader/event.py
new file mode 100644
index 00000000..c679a971
--- /dev/null
+++ b/vnpy/trader/event.py
@@ -0,0 +1,13 @@
+"""
+Event type string used in VN Trader.
+"""
+
+from vnpy.event import EVENT_TIMER
+
+EVENT_TICK = 'eTick.'
+EVENT_TRADE = 'eTrade.'
+EVENT_ORDER = 'eOrder.'
+EVENT_POSITION = 'ePosition.'
+EVENT_ACCOUNT = 'eAccount.'
+EVENT_CONTRACT = 'eContract.'
+EVENT_LOG = 'eLog'