The seal body and seal picture of the seal will be uploaded to the APP "seal cutting" APP of this project. Users can use the mobile phone APP anytime and anywhere to combine their preferences for different combinations of pairing, at least 81✖️ 2 combinations. At the same time, it can also intercept some users' favorite prints. In the end, there is one that best suits your mind. After placing an order in the APP, the company will produce it and then deliver it to consumers by express delivery. The APP designed in this project can be used as an APP for exclusive design of creative products, or as an APPlication applet in WeChat and other apps. At the same time, it is equipped with a set of expression packages related to intangible cultural heritage and traditional culture. Users can use them arbitrarily in the linkage APP (such as tremolo) to drain the seal cutting APP. APP has the function that users can DIY their own seal pattern. Not only nine kinds of Beijing classic Hutong street view and classic courtyard pictures. The resource library of seal cutting APP will continuously add new Beijing classic landscape patterns and provide traditional seal cutting handicrafts. Users can choose their own favorite non-heritage traditional culture-related seal shape, text font, yin and yang engraving, etc., to generate their own seal pattern. Secondly, the seal cutting APP not only has patterns and characters provided by the resource library, but also allows users to upload their own patterns and design seal cutting characters according to their favorite fonts. The unique seal customization function not only satisfies users who love traditional culture, but also satisfies users who have unique tastes and love DIY, allowing users to create their own characters, pattern contents and intangible cultural heritage culture. Customized generative design gives users a wide range of independent design rights, reducing the burden on designers while improving the user's sense of experience, allowing users to design what the seal wants to be printed and where it needs to be used. Make traditional culture and intangible cultural heritage more entertaining and interesting. It fits the public's aesthetics, conforms to the company's development direction, makes traditional culture a wider audience, allows users to accept traditional culture, and understands and promotes traditional culture through entertainment. After the user selects the seal pattern or text and places an order in the APP, the company will produce it and deliver it to the user by express delivery. At the same time, the seal cutting pattern designed by the user will also become the user's exclusive watermark. The APP can help the user to add an electronic watermark with one click, and then can be linked with other APP, allowing the user to add his own exclusive watermark when sharing photos, thus highlighting the user's personal characteristics.