This patient who was a 42-year-old female had suffered from bearing down sensation and pain on anal region due to metastatic rectal cancer. She was done intrathecal block with 15% phenol in glycerine. The result was exellent to bearing down sensation and pain on anal area. Because lower back pain, pain on lower extremity and generalized painful sensation was not improved, we has done pharmacologic assistance. Urination difficulty became slightly aggrevated but was improved at post-block day 4th. This pain clinic report that intrathecal block with 15% phenol in glycerine was effective to treatment of cancer pain without major complications.