Abstract:The study concerns the psychological needs of 342 criminals and 252 common persons according to Edward' s EPPS. The results turn out that 11 kinds of psychological needs according to the EPPS between criminals and common persons differ significantly, so do 9 kinds of psychological needs between female and male criminals. One-way ANOVA shows that there exists significant difference between those male criminals of 6 types of crimes in 6 kinds of psychological needs.