Abstract: The coronavirus disease -19 (COVID - 19) pandemic is not only a major public health emergency of high global concern, but also has caused long - term adverse effects on physical and mental health of the patients. The long - term sequelae of COVID - 19 has increasingly attracted the attention of the medical community and the whole society, and become a public health problem that cannot be ignored. An in - depth understanding of symptoms and harms of long coronavirus disease (long COVID) and strengthening health management on patients with long COVID are essential to reduce and avoid adverse effects of long COVID. This study reviews the latest research progress on long COVID at home and abroad, and on the basis of analyzing and summarizing adverse effects of long COVID on individuals, families and the society, puts forward corresponding countermeasures and suggestions to provide a reference for preventing and managing health hazards caused by long COVID in China.