Abstract: According to the requirements of China Meteorological Administration (wind profiler functional specification requirements book),reference advanced solid-state transmitter technology, a boundary layer wind profile radar transmitter operating in the L-band has been developed. The transmitter has uninterrupted continuous operation, plug and play and high reliability, waveform and bandpass response optimization to occupy a small spectrum width characteristics. This article is based on the modular structure of the transmitter, the main technical indicators and functions, and focuses on the design principles and principles of the transmission link, index distribution of power amplifiers at various levels, chip selection, power amplifier circuit design, ADS simulation and stability optimization. After nearly three years of uninterrupted operation at different radar sites, the transmission link performance is relatively stable and meets the design requirements. It provides a technical reference for the future self-study design of other types of radar solid-state transmitters.