The purpose of this paper is to design a well-structured public health protection Internet platform with a relatively closed ecological chain, and to improve the design system of public health daily protection platform for the public.. Based on the Goal-oriented design theory and search through user research, user modeling, requirements analysis, framework construction, refining and optimization, design support six stages. Identify the targets of three user groups (uninfected users, suspected symptom users and confirmed cases), including infection source control, transmission route intervention, mental health and social stability intervention. By constructing virtual user model and designing typical story scenes, six categories of user needs are extracted, including information, surrounding epidemic situation, safe travel, medical assistance, epidemic tools and psychological counseling. Building product requirement pool and determine it’s priority. Considering the difference of users' needs, customized functions are designed, such as home applet customization and information oriented push services such as community assistance direct, epidemic prevention policy, traffic control based on GPS positioning, attention, collection, personal license plate number and other information. Use wireframe to define product framework such as tag navigation including home page, travel, rescue, mine. Select the important information push service to describe the product logic in detail, refine the interaction mode of hovering on the ceiling for the information function, explore the design of public health daily protection platform for the public. Using the Goal-oriented theory, for the characteristics of public health protection user state and identity transformation, oriented to user behavior, to provide favorable support for the in-depth discovery of user needs and user goals, this research provides help and reference for future domestic and international response to public health events.