According to the research status of asphalt pavement heat collecting ,designed an asphalt pavement temperature difference power generation system by using a thermal conductivity aluminum plate instead of water pipe network as heat carrier ,through constructing the asphalt pavement thermal mathematical model ,thermal conductivity aluminum plate heat transfer mathematical model and semi-conductor thermoelectric generator mathematical model and so on dynamic simulation model .Through the theoretical analysis and experimental research on the system ,the results show that the thermal conductivity of aluminum plate as heat carrier can reinforce asphalt concrete ’s internal heat transfer , thereby reducing the temperature gradient of the pavement ,reducing the thermal stress of the pave-ment .At the same time the thermoelectric module can transform output energy into electric power ,as a electric complement of city municipal engineering .%针对沥青路面集热研究现状，设计了一种利用导热铝片取代水流管网作为载热体的沥青路面温差发电系统，通过构建沥青路面集热数学模型、导热铝片传热数学模型和半导体温差发电数学模型等动态仿真模型，对系统进行理论分析和试验研究，结果表明采用导热铝片作为载热体可以增强沥青混凝土内的热量转移，从而降低路面的温度梯度，减少路面的热应力，同时温差发电模块可将路面热量转化为电能输出，作为城市市政工程用电的补充。
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