In the fiercely competitive global market, enterprises need to comprehensively consider user needs and technological progress. The work aims to drive product innovation based on the Main Parameter of Value (MPV) which is the key feature and function that distinguishes products and influences customers' purchasing decisions, providing innovation guidance for enterprises in the fiercely competitive global market environment when guided by user needs, and combined with the theory of technological evolution. Firstly, based on the Kano model, a set of processes was proposed to identify the main parameter of value, classify user needs through this model, and evaluate the importance of needs by the entropy method. Secondly, in the evolution opportunity analysis stage, with the main parameter of value as the goal, the patent literature was analyzed, the technological development path was sorted out, and the analysis results were visualized in the form of a technological evolution tree. Finally, combined with the trend of technological evolution, potential evolution opportunities were identified to guide the generation of innovative solutions. A framework of product innovation was developed based on the theory of technological evolution, exploring the driving force of product evolution from the user's perspective. The effectiveness and practicality of this method are verified through case analysis with a robotic vacuum cleaner as an example. By exploring new MPV, guidance can be provided for product innovation in enterprises, thereby improving user satisfaction and loyalty.