City one-day tour is an important way to show the cityscape，culture and urban construction achievements to the tourists. In the new phase of normalized prevention and control of the COVID-19 pneumonia epidemic，urban leisure tourism presents new demands，new features and new ways，which pose challenges to traditional one-day tourism products and service，and city one-day tour is facing urgent requirements for transformation and upgrading. Based on the practical case of building a high-quality and world-renowned tourism city in Shanghai，the study found that the problems of city one-day tour are manifested in the misplacement of product supply and demand，the imperfection of public service，the difficulty of market supervision and tourists’ rights protection. Drawing on the advanced experience of one-day tour products and service in domestic and foreign cities，value orientation and boost plan are put forward on the city one-day tour：upgrading city one-day tour products from brand building and personality supply，making every effort to build a host-guest sharing and intelligent interconnection public service system and establishing a comprehensive management and rapid response mechanism for the “one-day tour” market. In this way，the city one-day tour will become a beautiful experience of “people’s city for the people” in the post-epidemic era，and an important representation of urban service brand and urban soft power.