This case report describes the experience of taking care of a prostate cancer patient with bone metastasis. The author assess the patient's condition by observation, interview, and the Gordon 11 item functional health pattern assessment guide. The patient was identified suffering from pain, and sleep disturbance. Because the pain was the major obstacle in recovering, alleviating the pain was the first priority. In our study of the nursing process, client's symptoms were released and his life quality were improved with the usage of medicine and non-medicine pain control intervention, including the relax techniques, the mental supports and encouragement.