The invention provides an integrated intelligent charging parking garage for an electric passenger car. A garage system has the functions of intelligent car parking/picking up, intelligent charging, voice and LED screen guiding, human-computer interaction, metering and billing, information collection and the like. The integrated intelligent charging parking garage for the electric passenger car can achieve intelligent parking/picking up and charging of the electric passenger car, accurate calculation of the charging amount of the charged car, safety protection and the like. According to the integrated intelligent charging parking garage for the electric passenger car, a Siemens touch industrial personal computer is adopted, a user-friendly human-computer operation interface and a rapid and simple operation mode can be provided, the quantities of states of multiple channels can be collected through an intelligent garage charging controller, and real-time monitoring and protection on the charging parking garage can be achieved.