Abstract:Clustering analysis is an unsupervised pattern recognition method, which is widely used in statistical analysis. But it is often abused in the use of the analysis process.The application of clustering analysis should be considered the purpose of the study. According to the purpose designing clustering index system and clustering criterion, when the criterion index is used to evaluate, the distance index is equivalent to the total index, so we should pay attention to the MOCT and the evaluation analysis.So we put forward a multiattribute overlapping clustering technique (MOCT) based on the application of the clustering analysis, and compared with the traditional methods in the evaluation and analysis of urban comprehensive competitiveness in China,the results show its superiority.