Many solution tools TRIZ provided, such as innovative principles, technology evolution, have been widely used for product innovative design in last decade. The key using TRIZ to improve design is the correct definition and solving of technical problems. However, it’s difficult for engineers to discover the inherent problems of product, especially for complex engineering systems. Therefore, this paper proposes a whole process model for product systematical innovation design, whose objective is to obtain ideal solution and whose technical method is to analyze and solve conflicts. This model integrates the definition, analysis of problems from top to bottom, with the resolving of problems from bottom to top, and will contribute to a systematic and operable process for problems definition, analysis, resolving. A practical application of this work is also presented.