Abstract: 【Objective】 To study the effects of water, salt, temperature and interaction on the germination characteristics of Zhongmian 619 cottond. 【Methods】 Based on orthogonal experiments, membership function method, and cluster analysis, PEG simulates drought stress, NaCl simulates soil salt stress, and a biochemical incubator were used to control the environmental temperature.The effects of water, salt, temperature and their interactions on filmless drip irrigation were compared and analyzed.After that, effects of germination characteristics on cotton cultivar Zhongmian 619 (filmless cotton) and Xinluzhong 37 cotton cultivar Xinluzhong under drip irrigation were compared. 【Results】 The results show that: Both had higher requirements for temperature, and the salt tolerance and drought resistance of cotton seeds without film and drip irrigation were better than those under drip irrigation.The effect of temperature on seed germination reached a significant level (P <0.01), the salinity reached a significant level (P <0.05), but the moisture and interactions did not reach a significant level. 【Conclusion】 Therefore, the suitable environmental factors for Zhongmian 619 cotton with no film drip irrigation are temperature 25℃, salt content 0.1%-0.4%, water content 7.5% and 15%, when water content is 15%, salt content is 0.2% and temperature is 25℃, the germination of the filmless cotton seed without drip irrigation was the best.