This paper summarizes professor LI Shimao′s experience in using Xinjia Shengjiang Powder（新加升降散） to treat heart palpitations with fire constraint pattern. Under the normal pulse syndrome differentiation system

it is believed that the etiology and pathogenesis of heart palpitations with fire constraint pattern（myocarditis） is the constraint and stagnation of the qi movement

and the further failure of dispersion of fire constraint; its clinical manifestations are of internal heat nature and external cold nature; deep

rapid and rashing pulse is the main factor of the diagnosis; the treatment method is to clear and vent heat from constraint; Xinjia Shengjiang Powder is recommended as the basic formula in the clinical practice

and can be modified according to the syndrome differentiation.