Results: Total 2230 patients, of which 1433 patients (64%) had pain, average age: 54.90 ± 15.04, 841 male patients (59%), 592 female patients (41%), mild pain: 37 patients (3%), moderate pain: 641 patients (45%), severe pain: 755 patients (52%), 881 patients (61%) had pain at two locations or more, 289 patients (20, 2%) had both receptive pain and neuropathic pain, 169 patients (12%) had good pain control with treatment level 1.848 patients (59%) had good pain control with treatment level 2, the common dose of Tramadol injection: 300mg / day (80%), 416 patients (29%) had good pain control with treatment level 3.216 patients (about 52% patients with severe pain) had good pain control with Morphin oral (average dose: 96.53 ± 40.65 mg/24 hours), average dose of Morphin subcutaneous injection: 39.51 ± 16.27 mg/24 hours, average dose of Morphin continuous subcutaneous infusion: 58.70 ± 23.60 mg/24 hours, the common dose of fentanyl patch: 25 mcg/h.