This study was conducted to explore the psychological character of healthy pregnant women. 81 four to ten months pregnant and 96 non pregnant women participated the study. SCL-90 was used to measure the psychological health state. The result showed that the average total and subtotal scores such as compulsion, sensitivity, stress, hostility, terror, obstinate, and psychiatric factor in pregnant women were obvious higher than in non pregnant women (P < 0.05 or P < 0.01). It indicated that pregnant women's psychological health state was not good. The major influencing factor was unhealthy characteristic type. It recommends that nurses should give advice and care to the pregnant women according to the individual's unhealthy psychological character to benefit both the mother and baby.