Abstract: The innovation of knowledge product exchange services will help speed up the cultivation of a unified technology and data market. Through multi-case analysis of the services and products of technology and data transaction enterprise, it sums up a knowledge product exchange mode under the open-white-labelled service platform, analyzes the connotation and service architecture of this mode, and illustrates the technical implementation path of this mode in combination with application scenarios and specific industries. There are three main findings in the study. First, the open-white-labelled service platform model focuses on knowledge resource holding enterprises, emphasizing service customization and ecological openness; Second, the mode is established under the unified service architecture of "background - middleground - foreground" of the knowledge product exchange, and has differentiated service characteristics according to different application scenarios such as production, external acquisition, and application development of knowledge products. The mode operation depends on the comprehensive capabilities of the platform service system, such as processing, integration, shared connectivity, and value realization; Third, the function of this model for the industry is to enable the whole chain and drive integration of industrial chain and innovation chain. The conclusions are instructive for changing the current dilemma of technology and data transaction platforms, and also for policy design to realize the market-oriented allocation of factors.