The invention provides an intelligent monitoring system and method for a battery power supply type electric flat car. The intelligent monitoring system comprises a battery voltage and current detection sensor set, a battery temperature detection sensor set, a motor temperature detection sensor set, a motor rotating speed detection sensor set, a gas detection sensor set, a sound-light alarm device,a processing unit, a wireless communication module and a monitoring terminal, the battery voltage and current detection sensor set and the battery temperature detection sensor set are used for collecting the voltage information, the current information and the temperature information of a battery correspondingly, the motor rotating speed detection sensor set and the motor temperature detection sensor set are used for collecting the rotating speed information and the temperature information of a motor, the gas detection sensor set detects various gas concentration information, all the data information is transmitted to the processing unit and then is processed, and the processed result data are transmitted to the monitoring terminal. According to the intelligent monitoring system and method for the battery power supply type electric flat car, the operation safety of the battery power supply type electric flat car is improved, operation and maintenance personnel can conveniently maintain the battery power supply type electric flat car, and the intelligent level is improved.