通过对其他国家对超载问题的治理措施及研究现状的深入分析，详细地分析了超载超限对我国道路运输的影响。为了有效的控制超载现象，必须从根本上解决该问题，在这样的技术手段的背景下。本文提出了把车辆载重信号转化为电信号输出到超载控制器，再由超载控制器判断是否超载，进而向超载限定执行机构发出相应的指令，并通过CAN总线和车辆中的其他智能设备如发动机控制单元ECU进行数据通信，确定出最佳方案控制车辆工况，并通过蓝牙技术无线发送车主信息到车辆管理所，对有交管部门超载车主进行处罚，达到威慑目的。本方案的可实行性比较大，整套系统具有灵巧、可靠、实用、低功耗、智能化等优点，实用用于30吨以上的中、大型载重货车。-Firstly, the thesis has introduced that overload problem had effect on Chinese road transportation in detail, by analysis of foreign farther measure and study status on overload problem. In order to control over loading effective,the problem must be resolved ultimately.Under the background, we Taking AT89C52 monolithic as the care of control circuit. The vehicles comes capacity signal which examines from the sensor transforms as the electricity pulse signal output overload controller, again by the overload controller judges whether overload, by this decision automobile whether goes on the low speed travel, then to the overload defined the implementing agency sends out the corresponding instruction, and though the CAN BUS communion with anther intelligence-devices such as the Engine Control Unit (ECU).Fix on the best way for controlling the vehicles,and with the Bluetooth technology, transmit the information of the owner to vehicles manage department by wireless.The vehicles manage depa