Artificial anal sphincter (AAS) is an implantable medical device used to treat fecal incontinence ( FI). The existing AAS equipment has shortcomings in biological safety and intestinal content perception, which limits its clinical application. Firstly, a hyperelastic model of rectal tissue was established combined with the characteristics of intestinal dynamics, and ANSYS was used for finite element analysis to simulate the process of closing the intestine with the prosthesis. Then, based on the simulation results, a new connecting-rod artificial anal sphincter structure embedded with 10 sets of pressure sensors was proposed. Finally, in vitro experiments and live animal experiments were carried out. The experimental results confirm that the simulation model is established accurately, and the sphincter prosthesis can control 200 g feces and meet the normal life needs of human body within the blood supply safety pressure threshold. The 10 sets of pressure sensors are reasonably distributed, and the measurement results have good linearity. The accuracy of intestinal content quality prediction in vitro experiments is 89. 69% , and the accuracy of defecation warning in live animal experiments is 82% , which can preliminarily reconstruct the rectum perception of FI patients.