At present, the humidity sensitive capacitance humidity sensor and the platinum resistance temperature sensor used in the automatic weather station are usually installed in the shutter. In order to solve the problem of ventilation and radiation sensors, with forced ventilation and radiation protection material and the vertical wind tunnel method, combined with the sensor structure and the conditions of actual use requirements. The successful design of the forced ventilation is embedded in the louvered box installed inside the anti radiation device, not only meets the specification requirements of meteorological observation, practical and easy to install and use. Through the performance test, the results show that the main performance index of the embedded forced ventilation radiation protection device meets the design requirements.