Abstract: T he conception is one kind of creative thinking different from the knowledge innovation.So far "the logic of arguments" and "the logic of scientific discovery" is the absence of "the logic of concept" and we should strengthen the conception logic.As a concept of creative thinking,the conception must use logic.The conception and the hypothesis are the creative thinking,and both have the general characteristics of creative thinking,but the two have differences in the seven respective aspects of the category:the use of the concept,the content and structure,the thought form,the transformed way,the function and the developing process.The developing process of the conception includes three stages:the conception proposition,the conception establishment and conception realization.The proposition stage takes proposed creative concept as the symbol,the establishment stage instruction emanation as the symbol,and realization stage the implementation as the symbol.Each stage has its different features,form and logic means,but the whole process lies in this basic rule of conception thinking—— "the creativity + rationality +best value".