An acute pain is the common experience following surgery. Pain is a most miserable experience in person and most preoperative patients have fear of postoperative pain. In nursing, it is very important to understand and relieve the pain between group of Patient Controlled Analgesia and group of traditional Muscular Injection in surgical patients. This information can be utilized as data of understanding nursing care and treatment planning for pain in surgical patients. The subjects in this study were 45 post-hysterectomy patients in Gynecology ward in C.N.U.H., in Taejon. Data was collected from May 12 to June 27,1996. The instruments used for this study were subjective Visual Analog Scale, Objective nonverbal pain scale composed of Facial Appearance, Vocal Sound Change. and Sweating score, and the Melzack's Mcgill pain Questionnaire, nine Items of Developmental pain Intensity Scale by Lee Eun Ok. Analysis of data was done by using S.P.S.S. percentage, t-test, x2-test, ANOVA, and Repeated measure ANOVA. Results were obtained as follows. 1. Hypothesis 1 : There was very highly statistically significant difference in subjective self-report pain score(Visual Analog Scale) between PCA Group and IM Group(P=0.0001). 2. Hypothesis 2 : There was very highly statistically significant difference in muscle strength score(Visual Analog Scale) between PCA Group and IM group(P=0.0001). 3. Hypothesis 3 : There was very highly statistically significant difference in facial appearance score between PCA Group and IM group(P=0.0001). 4. Hypothesis 4 : There was very highly statistically significance difference in vocal sound change score between PCA Group and IM group(P=0.0001). 5. Hypothesis 5 : There was no statistically significant difference sweating scores between PCA group and IM group(F=2.50, P=.1220). But, post-operation time of 12, 24 was statistically difference between two groups(P=0.0001) So, it was partially supported. 6. Hypothesis 6 : There was very highly statistically significant difference in vocabulary pain score between PCA Group IM group. 7. Hypothesis 7 : There was very highly statistically significant difference in amounts of total analgesic between PCA Group and IM group. There was very highly statistically significant difference in Visual Analog Pain Score, Facial Appearance Score, amounts of total analgesic between PCA group and IM group. So, It is verified to asses of postoperative pain with, VAS, Checklist of facial appearance, vocal sound change, and sweating, and Vocabulary Scale.