With the accelerated pace of life and outdoor running constrained by the environment and other factors, the consumption in treadmill is on the rise, and at the same time, the design of treadmill is more and more concerned. Starting from the customer demand, the user demand analysis method is formed by synthesizing KJ method, rough set theory, KANO theory and AHP, and combining with the prediction theory of destructive innovation technology. And the design requirements and their weights derived from the QFD model are used as the criteria for PUGH decision evaluation to select the optimal treadmill design solution. Finally, the treadmill design scheme is applied specifically. In the planned turnover analysis after the treadmill is put into operation, the turnover scale is increased from 0.73 billion yuan in 2016 to 180 million yuan in 2020. After the experimental test, both the percentile 10% of the female human body and the percentile 90% of the male human body in the treadmill to carry out some of the necessary actions are in a more comfortable state, at the same time, the various joints of the force and angle are in a reasonable range. The design program of this paper’s method outputs better evaluation results, and meets the user’s expectations.