The book systematically summarizes the grammatical knowledge of the complex sentences, classifies 12 types of complex sentences, extracts grammatical features of 90 complex sentence as secondary key grammar point, and makes use of teaching materials and reference books for each secondary grammar point. In addition, it identifies the knowledge base of the complex sentence by annotating detailed information such as examples, similar and related confusing words. Based on the characteristics of language learning and the construction of other self-adaptive learning systems, the book designs and implements the self-adaptive learning system of grammar for teaching Chinese as a foreign language by means of combining the technology of self-adaptive learning and the technology of teaching Chinese as a foreign language.