Abstract: Taking the greenhouse of Taigu county in Jinzhong city of Shanxi province as the experimental site，the tomato varieties Lisa，Qidali were selected as experimental materials.Effects of soil water on gluten rot occurrence of different tomato varieties were studied.Results showed that there was a close relationship between occurrence of tomato gluten rot and soil moisture.The high or low soil moisture content could increase incidence of disease.At the same time，under same environment，the resistance of tomato varieties to tomato gluten rot was also different.