This paper reviews the understanding divergence of the termsentence patternof Chinese grammar scholars;from the perspective of Chinese information processing, it analyses the lack of sentence pattern structure in current syntactic parsing and treebank construction in this field; and gives a recent review of formalization research of Li Jinxi's grammar system, indicating its strengths and still shortcomings on sentence pattern structure; it uses Li Jinxi's diagrammatic parsing method as a prototype design of a new type of diagrammatic parsing method of Chinese syntactic structure, specifically including a diagrammatic representation of the syntactic structure and structured XML storage format.