Winter protection is a key link in the process of ornamental potted apple cultivation,the plastic greenhouses with film+straw(at 0.6 m intervals cover a straw) method was used to research apple wintering impact test.The results showed that the temperature in greenhouses was increased 5℃ to 10℃ by the method of plastic film+straw(at 0.6 m intervals cover a straw),the temperature outside of greenhouses was -10℃ to -18℃,temperature in greenhouse was -3℃ to -8℃,the temperature of ground was -4℃,significantly higher than the apple roots suffer-temperature -12℃,also could meet the requirements of ornamental apple winter low temperature,and humidity was around 85%,potted ornamental apple was safe to winter.