According to the service relationship of business module layout within the enterprise of the securities industry, this paper proposes the analysis and design of the industry chain value model, centering on the business line, product line and technology line. Focusing on the construction of ten related subsystem platforms of the front-office, middle-office and back-office, we also explore the main path of developing securities business, product and technology innovation. Based on grasping the feature of industry chain value model, the entity industry asset securitization and its flow pattern, supervision and risk prevention, this paper provides a comprehensive study of the development, integration and application of techniques that are streamlined, quantitative, indexing, and measurable. Moreover, we offer fifteen conceptions about the construction of the related key technical subsystem. On this basis, our paper proposes ideas of discovering and integrating core data sources of the securities industry and constructing industry (enterprise) knowledge map database and value chain model from the perspective of the customer, product, business, respectively. Finally, we investigate the positioning and implementation of financial technology innovation in the securities industry, the steps of innovation laboratory construction and development, including its ownership as well. Overall, our paper is the only one that comprehensively expounds the empirical research on fintech innovation in the securities industry from a multi-dimensional perspective. It has a high practical value in the banking, insurance and securities industries.