The invention discloses a meter reading module based on a Lora wireless sensor network, the meter reading module includes a PC, a plurality of ammeters and gateway nodes which are connected with the PC through serial ports, the ammeters are connected with Lora modules as routing nodes through the serial port, the ammeters supply power to the Lora modules, each Lora module includes a mcu and a radio frequency ( rf ) chip, the radio frequency ( rf ) chip and the mcu are connected, the Lora modules are networked by the radio frequency ( rf ) chips, the Lora modules and the gateway nodes are networked by the radio frequency ( rf ) chips, the Lora modules are networked mutually, a superior connection point of the Lora modules also can be Lora modules, the meter reading problem is solved, at the same time, end-to-end low-transmission time-delay communication can be guaranteed, at the same time, the meter reading module has high reliable communication ability in large-scale and high density node layout scenarios, and has the advantages of a high network coverage rate, a flexible structure, high reliability, strong versatility, simple construction and laying and convenient maintenance.