Aiming at the difficult problem of the ability culture of the architectural concept, the paper proposes to improve the ability of architectural concept from the two aspects of its epistemology and methodology. Through the analysis of the conceptive psychological process, the paper puts forward to raise awareness, to strengthen the accumulation and training for architectural concept from four process of its cognition, emotion, will and conception expression; by analyzing the characteristics of the conceptive consciousness, presents architectural concept to make comprehensive use conscious and unconscious, continuous access to information materials and enrich the information base, good inspiration and freehand sketching, and strive to design with originality and ingenuity. The key to improve the design ability is the systematic understanding of the architectural concept and the accumulation and exercise for all conceptive process.