Abstract:  Heritage corridor is a comprehensive theory which provides systematic guidance for the protection and development of largescale linear cultural heritage. Construction of cultural heritage corridor is conducive to protect, develop and manage the heritage resources and living environment along the line. The influencing factor index system construction and suitability evaluation are the foundation of building cultural heritage corridor. In this paper, the influencing factors for cultural heritage corridor were firstly determined using literature research method and Delphi, and fourlevel index system for the suitability evaluation of heritage corridor construction were established, the weight of which were determined with Analytic Hierarchy Process. And then with Maritime Silk Road as an example, the cultural heritage corridor construction was empirically analyzed, and some countermeasures and suggestions were put forward for the suitability analysis about heritage corridor construction based on the existing problems.