This article introduced the clinical experience of professor MEI Guoqiang in the treatment of dilated cardiomyopathy（DCM）. He puts forward that the core pathogenesis of DCM is nothing but deficiency and excess. The excess pattern is mainly due to phlegm and blood stasis which obstruct qi movement and heart vessel

while the deficiency pattern is mainly caused by depletion of qi

blood

yin

and yang of heart. Therefore

data should be comprehensively collected to differentiate the excess and deficiency pattern through four examinations. Pattern differentiation should be combined with disease differentiation to guide treatment. For the commonly seen patterns

such as binding of phlegm and stasis

qi stagnation and blood stasis

qi-yin depletion

and edema due to shaoyin yang deficiency

Xiaoxianxiong Decoction（小陷胸汤）

Xuefu Zhuyu Decoction（血府逐瘀汤）

Huangqi Shengmai Decoction（黄芪生脉饮）

Zhenwu Decoction（真武汤）

are recommended respectively

and can be modified according to pattern and disease differentiation. From the theory of "chronic diseases transforming to collaterals"

he often uses worms

vines

and collateral-dredging and mass-dissipating drugs

to remove the pathogen of the collaterals.