The present invention discloses a dialogue method of an intelligent customer service robot and a knowledge base management system of the intelligent customer service robot. The method comprises: presetting one or more question and answer pairs in a knowledge base, and collecting statistics of association degrees among the question and answer pairs; searching for a corresponding question and answer pair in the knowledge base according to a question raised by a visitor; providing an answer in the question and answer pair for the visitor; and furthermore, by using the question and answer pair as a basic question and answer pair, providing an associated question in an associated question and answer pair corresponding to the basic question and answer pair for the visitor according to the statistical association degrees among the question and answer pairs. Therefore, communication efficiency is greatly improved, and big data of the knowledge base and algorithm management are used to assist the user to obtain a desired result more quickly, and user experience is better.