60 patients with stage III-IV NSCLC will be randomly divided into group A (receive DC-CTL treatment with chemotherapy) or group B (Just receive chemotherapy), and the randomize ratio will be 1:1, patients in group A will receive 3 cycles of DC-CTL treatment (every 1 months) and 4 cycles of chemotherapy (every 2 weeks). Patients in group B will receive only 4 cycles chemotherapy(every 2 weeks).
Patients in group A will receive DC-CTL treatment and chemotherapy. Patients in group B will receive only chemotherapy.