Autonomous Regulations are the important link of carrying out and implementing the system of regional national autonomy, however, as the development of our country's regional legislation work lags relatively behind, there are still a lot of problems in the formulation and implemention process of autonomous regulations. The existence of these problems is not only concerned with the current situation of our national regional autonomy, but also related to the cognition degree of the organs of self-government on the ethnic regional autonomy system and related laws, as well as legislative technique level to be improved. Based on references to the predecessors' researches, take Autonomous Regulations of Liangshan Yi Autonomous Prefecture (Amendment) as a case to analyze the Legislative Problems of Autonomous Regulations of Autonomous Prefecture ,for instance, a mass of politicized-language and declarative specifications, serious repeated legislation phenomenon without innovation, legislative intent lack of accuracy and operability and provide realistic reference for study on the consummating paths of autonomous regulations of autonomous prefecture etc. Meanwhile, proposes some corresponding recommendations to ponder its perfectness basing on the legislative shortages found out above and aim to enrich the content of research on the autonomous regulations of autonomous prefecture, perfect national legal system, and empower effect of the Regional National Autonomy System in China.