This project will collect and analyze the existing open data utilization practice projects in the library, summarize the experience and shortcomings of the existing model, and on this basis, explore a new model that is more in line with the actual needs, better reflects the cultural connotation of open data, and fully exerts its value. At the same time, on the basis of theoretical exploration and through practice, we design a cultural WeChat applet with the main content of the open data of Shanghai Library, giving full play to the cultural value and publicizing the cultural connotation as the basic goal. In the exploration of theory and practice, this paper explores the cloud service mode of library open data utilization from the perspective of digital humanities. In summary, the selection of the "film" element of Shanghai-style culture as the practical object of the digital humanities project in this project has the following two important meanings: From the perspective of Shanghai-style culture, Shanghai is the birthplace of Shanghai-style culture. It is also the cradle of Chinese movies and has rich Shanghai-style cultural resources. On the one hand, the design of the small program plays an important role in promoting the spread of Shanghai style culture, especially Shanghai style film culture. On the other hand, it is of great significance to the reproduction of historical memory of Chinese film development and the reconstruction of Shanghai style cultural memory, and has important social value. From the perspective of digital humanities, digital humanities, as a cross-disciplinary discipline, applies digital technologies and methods to the field of humanities, which has a strong practicality. The selection of this project provides an opportunity to explore the nature and value of the discipline from the perspective of the digital humanities.