The utility model discloses a weighbridge acquisition and processing device based on Bluetooth technology. The weighbridge acquisition and processing device comprises a single-chip microcomputer chip,a vehicle identification interface circuit, a weighbridge interface circuit, a power supply circuit, an isolation power supply circuit, a Bluetooth module circuit and a liquid crystal display, the vehicle identification interface circuit is used for receiving license plate information of passing vehicles; the wagon balance interface circuit receives the load capacity, measured by the wagon balance sensor, of the vehicle; the Bluetooth module circuit is used for establishing connection between the single-chip microcomputer chip and the mobile phone and sending the vehicle identification information and the vehicle load capacity information to the mobile phone; the power supply circuit is connected with the single-chip microcomputer chip and used for supplying power to the system. The liquid crystal display is connected with the single-chip microcomputer chip and used for displaying information collected on site more visually. According to the utility model, by changing the structure ofthe device and utilizing the Bluetooth technology, the collected weighbridge data is sent to the mobile phone and then is sent to the background server by the mobile phone, so that the problems of complex installation and control and high cost of the existing weighbridge collection system are solved.