This paper introduces a data acquisition system for continuous angle measurement based on double conductive plastic sensor, and its angular resolution is up to 0.1°in theory. The system is mainly composed of a low power MCU, 0-power consumption serial circuit and display part. Single chips control the inner ADC12 module for data acquisition, then enter into low-power sleep state and can be awakened by timer interruption. By the dual-channel data acquisition with double conductive plastic sensor and the algorithm design, the large size, heavy weight and high demand of dustproof and electromagnetic environment of traditional photoelectric encoder are avoided, and 0 ° ~360 ° continuous angle measurement is realized, which could not be done by the traditional conductive plastic sensor. This system has the characteristics of high accuracy, low power consumption, small size and strong extensibility, which has important application value in angular displacement measurement for industrial control, intelligent robots and condition monitoring.