In this study, 16 patients with NSCLC were enrolled to explore the clinical effect of chemotherapy combined with local injection of Envafolimab. To determine whether the treatment of metastatic/recurrent NSCLC with Envafolimab is effective, and whether the treatment of Envafolimab combined with chemotherapy can prolong the PFS\\OS of patients with NSCLC, and to screen for a more effective treatment mode for Chinese NSCLC patients.