Post novel coronavirus pneumonia pulmonary fibrosis (PCPF) is a common long-term pulmonary sequelae in COVID-19 patients, with recurrent clinical symptoms and a long recovery period. In Chinese medicine, this disease is categorized as "lung paralysis" and "lung impotence". Based on years of clinical experience, Prof. Fu Yi summarized the core mechanism of the disease as "deficiency of Zongqi, phlegm and blood stasis, paralysis of the lung collaterals", and advocated the method of "uplifting and replenishing the Zongqi, resolving blood stasis and clearing the collaterals" in the treatment. It can significantly improve clinical symptoms and improve the quality of life of PCPF patients. This paper summarizes its theoretical basis and clinical experience, and provides reference for the combined treatment of PCPF with Chinese and Western medicine.