A laboratory experiment was conducted to investigate varietal differences in feeding preference of striped rice borer larvae (Chilo suppressalis W.) to the stem pieces of the eight rice varieties. The preference of the larvae for feeding was significantly differed with the varieties, and in some varieties they were changed with the stages of the plants after transplanting. The larvae much more preferred the susceptible variety Rexoro than the resistant variety TKM-6. The varieties Tongil (Suweon 213-1), Yushin, Jinheung and IR-26 showed comparatively lower feeding preference than TKM-6. Some varieties exhibited a rather interesting phenomenon; strong preference in feeding was observed during the vegetative phase for Tetep and Tongil (Suweon 213-1) and during the maturing phase for Suweon 240 and Yushin. When the varieties TKM-6, Tongil and Rexore were given in several combinations, Rexore was strongly preferred by the larvae than others, and Tongil was still comparatively low in feeding preference of the larvae. The non-feeding preference of the larvae were considered to be in coincidence with the resistance of rice varieties to the striped rice borer.