Tuberculous pericarditis in children is not uncommon in clinical practice. It is more common in school-age children. Tuberculous pericarditis can be divided into two types: exudative and constrictive. Foreign reports of pericarditis are mostly non-specific, while domestic reports of tuberculosis are the most common. 4-7% of acute pericarditis are tuberculous, 7% will develop cardiac tamponade, and 6-7% of cases develop into constrictive pericarditis. Tuberculous pericarditis occupies an important position in pericardial diseases in my country, accounting for 21.3-35.8% of pericardial diseases. At present, the incidence of tuberculosis is on the rise worldwide, and the spread of human immunodeficiency virus (HIV) is one of the main reasons.