The results of MMPI on 485 schizophrenics,(280 male and 205 female)showed that thescores were significantly different both between the patients and the normal controls and between the para-noid-type schizophrenics and the undifferentiated-type ones. The lineal distributions of validity scaleswere LFK,LF K and L=F=K. The clinical scales of almost all the patients showed the highestscore of Sc and/or Pa with LFK. Additional and content scales also demonstratedsome diagnostic value.