diff --git a/rest_framework/throttling.py b/rest_framework/throttling.py
index 57f24d13f..6d8b04f46 100644
--- a/rest_framework/throttling.py
+++ b/rest_framework/throttling.py
@@ -118,6 +118,9 @@ class SimpleRateThrottle(BaseThrottle):
         """
         if self.rate is None:
             return True
+            
+        if request.method == 'OPTIONS':
+            return True
 
         self.key = self.get_cache_key(request, view)
         if self.key is None: