In the process of cultural integration in the world, all countries pay more attention to the protection of their cultural heritage. As a kind of heritage of comprehensive human activities, bridge cultural heritage has many attributes such as transportation heritage, architectural heritage, urban planning heritage, industrial heritage, etc., and has been paid more and more attention by all countries in the world. However, at present, compared with other cultural heritages, the research and practice of bridge cultural heritages in the global scope are still immature and have not formed a system. Through the statistics of ancient bridge, ancient bridge culture and related research in the past 20 years in China, we can clearly see the overall status of bridge cultural heritage research in China. Moreover, based on the induction and analysis of the research results of bridge cultural heritage at home and abroad in 2020, the paper expounds and summarizes the research progress of bridge cultural heritage at home and abroad in 2020, and looks forward to the planning and protection of bridge cultural heritage in the future.