In this paper, in order to help the growing number of elderly do away with the difficulty getting about, a walk-assistant robot for the elderly was designed with tactile and sliding senses that can perceive the movement intention and state of the elderly. And then, its key component, namely detection system of tactile and sliding sensor is designed in detail, including the layout of basic unit selection design of tactile and sliding sensor and the data acquisition system. In the end, a single channel experimental platform is built. The tactile and sliding senses of the elderly are detected and analyzed, and the design of detection system has been preliminarily verified effective. The results show the designed tactile and sliding senses detection system has the function to recognize the intention and state of the elderly movement.