The invention discloses a general vehicle equipment analog signal acquisition and processing system, comprising an MCU (Micro Controller Unit), a function configuration module, a current detection and protection module, a voltage detection and open-circuit detection module and a signal isolation module, wherein the MCU is connected with the function configuration module via the signal isolation module, the function configuration module comprises three triodes arranged in parallel, and the MCU realizes acquisition of resistance, voltage and current signals respectively by controlling on and off of the triodes; and a signal input end is connected with the triode Q1121 to realize differential voltage acquisition of resistance signals, the signal input end is connected with the triode Q1125 via the current detection and protection module to realize conversion from current signals to voltage values for acquiring, and the signal input end is connected with the triode Q1122 via the voltage detection and open-circuit detection module to realize acquisition of voltage signals. The system realizes general acquisition, improves the labor efficiency, and reduces the using categories of electronic components.