Abstract: The ocean contains various forms of energy with enormous reserves.In order to make full use of these resources, a small-scale offshore solar power generation system based on thermoelectric semiconductor power generation technology is proposed.With this system, heat transfer medium is heated by solar energy and the circulation of the heat transfer medium is achieved by ocean wave energy.Then the electric power is generated from thermoelectric semiconductors with the difference of temperature, thus realizing the simultaneous utilization of ocean solar energy and wave energy.The structure and working principle of the system are introduced.Through theoretical analysis and simulation verification of thermoelectric semiconductors, it is found that thermoelectric semiconductors can theoretically achieve 10% energy conversion efficiency.Due to its simple structure, there is no mechanical components and high integration, it has merits such as high reliability, low maintenance costs.Therefore, this system has certain application prospects.