Abstract: Critical regionalism emphasizes the close connection of the building with the local natural environment,the background of culture and local building materials.Through analyzing Tiantai Museum,it was interpreted that the characteristics and the meaning of existence of critical regionalism construction,and tapped the positive guidance function of critical regionalism concepts in the practice of a modern architectural design.And then analyzing the idea of designing,the using regional elements,and creative strategies of Tiantai Museum.Finally it was summarized the creatives strategies and thinkings of the critical regionalism architectures.