In order to improve the sensitivity of the tactile sensor, according to the basic principle of piezoelectric effect of polyvinylidene fluoride (PVDF) piezoelectric film, combined with bionics of human skin physiological structure layer, through designing the doublesalient arch structure sensor and optimizing the integrated signal conditioning circuit as well as designing the LabVIEW data analysis and processing program for the host computer, a bionic tactile detection system based on PVDF piezoelectric thin film is presented in this paper. The test and analysis of the sensors with different structures are carried out and the collected data is processed by using the Origin software. It is verified that the slip signal detection sensitivity of the doublesalient arch structure sensor is the best, which is 1.36 times higher than that of the nonsalient arch structure sensor and 1.19 times higher than that of the uppersalient arch structure sensor. The experiment shows that the system can detect and judge the touchheat signal and realize the function of bionic skin of tactile sensor.