The purpose of this study was to compare and evaluate various hand functions in three hip flexion postures(70°, 90°, 110°)in persons with spastic diplegic cerebral palsy using by Jebsen Hand Function Test. 14 children with mild or moderate spastic diplegia were chosen in the Rehabilitation Hospital, Yonsei University Medical Center. Both hands were tested 3 times by ten intervals in three hip flexion postures (70°, 90°, 110°). Data Collected were analysed using nonparame-tric test, Friedman's Test. Results were as follows: 1. The right hand mean score of Jensen Hand Function Test showed no significant difference in any of the three hip flexion postures. 2. The left hand mean score of Jensen Hand Function Test showed no significant di- fference in any of the three hip flexion postures. The results showed that the hand function of children with spastic diplegia was not affected in three hip flexion postures, but it is necessary to maintain well supported pelvic posture for good hand function.