Abstract：Palpitation is a common symptom after novel coronavirus infection （COVID-19）. Chief physician YAN Xingmao believes that the core pathogenesis of palpitation after COVID-19 is the triple-yang combination of diseases， that is，the coexistence of the taiyang exterior syndrome，the shaoyang half-exterior half-interior syndrome，and the yangming interior syndrome. In clinical practice， syndrome differentiation should start with the theory of triple-yang combination of diseases，and the treatment should focus on the triple-yang simultaneously. The main treatment methods should aim to relieve the taiyang exterior， harmonize shaoyang pivot， and clear the yangming interior. Chaihu and Longgu Muli Decoction should be modified according to the changes in syndrome or symptoms， thus， significant clinical effects can be achieved.