Based on a test platform of the X-band fully solid-state weather radar at Key Laboratory of Atmospheric Sounding of China Meteorological Administration,this paper introduces that the combination working mode is designed to detect the blind spot of radar near-field detection,which is caused by wide pulse,under the condition of 50 m radar detection distance resolution.This paper mainly analyzes the impact of time sidelobe leaked by main-lobe on detection range of the meteorological echo intensity.Transmission Amplitude Taper will improve the level of sidelobe compression under the loss of peak emission power,however,it is not suitable for limited peak power and low compression factor.Furthermore,an adaptive method is introduced to suppress sidelobe.The simulations show that,using the method,the peak sidelobe suppression is nearly -50 dB,and the main-lobe broadening coefficient is close to 1.Compared with the classic matching method and hamming weighted method,it will improve about 4 dB for the weak signals detection.Finally,based on the analysis of radar detectable maximum distance,the precipitation detection capability of the X-band radar is compared with the 713 radar in a field observation case.It shows that the X-band solid-state radar can detect precipitation echoes stronger than 10 dBz within 150 km.