In recent years，as an indispensable part of comprehensive treatment，Chinese medicine has infiltrated into all stages of cancer treatment.No matter how it is taken，Chinese medicine has a place in the treatment of malignant tumors.In order to improve the level of differentiation and treatment of clinical syndromes，to explore new strategies and methods of syndrome differentiation and treatment of malignant tumors，and to establish a reasonable clinical thinking mode，the authors combined previous experience with own practice based on the dynamic thinking of Canon of Medicine，put forward the theory of"dynamic syndromedifferentiation and treatment"，which mainly expoundsand interpretsthedynamic syndromedifferentiation and treatment that is based on grasping the node of syndrome differentiation and treatment from the angles of the changes of the essence and the evil，the changes of the syndromes and the change of the tongue.