Abstract: The effects of returning straw to soil of ‘wofengbao’ technology on cucumber cultivating is studied in this paper, the results shows that compared with normal (non-straw) cultivating, cultivating through straw-return of ‘wofengbao’ technology, the soil temperature of 10㎝ and 20㎝ was improved by 1.44℃ and 2.54℃ respectively in the beginning of growth stages, the soil temperature of 20㎝ was improved from 0.93℃ to 2.54℃ later. Cucumber’s growth stages were advanced, harvesting stage was prolonged, disease resistance and productivity were increased greatly. As a result, this technology can improve soil temperature, advance mature, prolong stage of picking, improve disease resistance and productivity of cucumber.