Abstract: To obtain a new method of pesticide residue degradation in fruits and vegetables, the effects and influencing factors of fenpropathrin residue degradation in Shandong Chengyang Cyan Chinese cabbage were studied by using plasma through response surface methodology. The results showed that plasma had an excellent effect on fenpropathrin residue-degraded in Chinese cabbage. The degradation rates were all more than 70%,and the influence strength of the parameters was application time> power> electrode distance. The optimum residue degradation conditions of fenpropathrin were application time 30s, power 200 W and electrode distance 3 cm, and the maximum degradation rate was 98.78%. This paper provide a reference for pesticide residue degradation in fruits and vegetables.