The so-called fuzzy comprehensive evaluation refers to the fundamental method of engineering fuzzy systems, which is widely used. For example, it plays a very important role in quality control, performance evaluation, weather forecast, expert scoring system, medical diagnosis, economic management, psychological measurement and other fields. Fuzzy comprehensive evaluation has the following three links: determine the fuzzy relationship matrix, determine the weight, and select the operator. Gradually, with the rapid development of fuzzy comprehensive evaluation, the above links have been further improved in the continuous practical application. For example, the weight is corrected by the method of entropy, and the descending semi-trapezoid is replaced by changing the membership function to determine the fuzzy relation matrix. In terms of operators, power operators and nonlinear operators have also appeared. Through the research and analysis of a large number of relevant materials, this paper has a full understanding and grasp of the development information of fuzzy comprehensive evaluation. And carried out a very detailed overview and summary, and further improved the integrity and diversity of the fuzzy comprehensive evaluation method.