A scientific and reasonable evaluation of regional coordinated development relies on the accurate grasp of its conception. Based on the conception analysis of the regional coordinated development,this paper sums up three major paradoxes existing in evaluating indicator chosen on the regional coordinated development study. The first one is the replacement ofregional coordinationwithdevelopment elements coordination; the second one is the replacement ofcoordinated developmentwithregional development; the third one is the replacement ofregional coordinated developmentwithregional sustainable development. On the basis of the latest research summary,this paper takes a further step to indicate that the evaluating indicator chosen should adapt appropriate methods,with the grasp of the conception of regional coordinated development being the precondition. Meanwhile,the paper also indicates theregional subjectivityshould be upheld through the course of study,which means layem- phasis on the application of comprehensive index and relative index.