This paper advocates paying attention to the objective attributes and emotions of data, re-establishing the data visualization design model on the basis of data thinking and design logic, moreover, putting forward and extending the problems in the design process, trying to find valuable and worthy problems, so as to avoid the design model becoming an invariable equation, At the same time, the combination of the design thinking and data science better provides a new perspective for the design practice of data visualization in the future. Discussion includes "data" and "design logic". Driven by the differentiation and customization of the connotation of "data" and "data thinking", and based on the deduction of data visualization cases, this paper observes the key links of visualization design from the perspective of data visualization design logic. Data presentation has various forms, and the design form is closely related to data attributes. In order to avoid neglecting the evaluation stage, a data visualization design model based on the three stages of "cognition, creation and evaluation" is established. In the actual design, designers need to participate in the three stages simultaneously.