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To obtain wetting property of rapeseed (Brassica napus L.) stalk surface, a CAM101 type contact angle tester was used to test the contact angle between rape stalk surface and twice distilled water & filtered rapeseed oil. Comparative analysis was made to the test on which rape variety, harvest date, test position and powder on rape stalk surface were introduced as factors. The results showed that the contact angle between rape stalk’s surface and twice distilled water & filtered rapeseed oil approximately increased linearly along with the increase of distance between test position and stalk root, and the powder on rape stalk surface made it a superhydrophobic surface. It was also shown that rape variety and harvest date had an uncertain influence on the contact angle between rape stalk surface and twice distilled water & filtered rapeseed oil.