Abstract: s After applying of fenpropathrin、phoxim and its mixture on apple, respectively, the residue of fenpropathrin and phoxim was analyzed. The results showed that residue half time (T 1/2 ) of fenpropathrin on apple were 19.3d and 18.1d. The residue half time (T 1/2 ) of phoxim on apple were 1.54d and 1.46d. There were no remarkable differences between the use alone and the mixed use of fenpropathrin and phoxim. From the residue standpoint, the mixed use of the two insecticides on apple was safe.