From January 1983 to December 1990, Sixty-six patients who have tumors around the hip joint and were confirmed their diagnosis by histopathological study have been reviewed and the following results were obtained. 1. There were forty-three cases(65.2%) of benign tumor and twenty-three(34.8%) malignant tumor. 2. Of the sixty-six patient, thirty-four were male and thirty-two female. In benign tumor, they shows relatively even distribution in age but in malignant tumors, thirteen cases(56.5%) were in the 5th and 6th decade. 3. Among the benign tumors, the soft tissue origin was nineteen cases and bony origin twenty-four. The most common tumor in soft tissue origin was lipoma (six cases(31.6%)) and bony origin unicameral bone cyst (nine cases(37.5%)). In malig- nent tumors. the metastatic carcinoma was most common (twelve cases(52.5%)) and the liver was most common primary site of cancer. 4. The most common chief complaint was mass (fourteen cases(32.6%)) in benign tumor and painful mass (eight(34.8%)) in malignant tumor. The duration of symptom ranged from 1 day to 33 years with an average of 3.6 years in benign tumor and from 2 weeks to 5 years (average 6 months) in malignant tumor. 5. Most of the benign tumors were treated by local excision, and malignant tumors were treated by wide excision, chemotherapy, radiation therapy, bipolar hemiarthroplasty, and tumor prosthesis or combination of them.