Abstract: Aiming at the joint analysis of wind field and depolarization ratio in atmospheric remote sensing, a dual-polarization coherent detection method was proposed. Based on traditional coherent wind light detection and ringing(LiDAR), a detection system that can achieve diversity reception of orthogonal polarization signals was designed, and the calculation principle of atmospheric depolarization ratio under this system was derived.A systematic experiment was conducted to compare and observe the radial wind speed information of parallel polarized light and vertically polarized light under different weather conditions, and to describe the atmospheric state in combination with real-time atmospheric depolarization ratio parameters in two dimensions. The results show that when the laser emission energy is 100 J, the pulse width is 400 ns, and the distance resolution is 30 m, the radial wind speed range in cloudy, foggy, rainy and sunny days can reach 6.0 km, 5.5 km, 3.0 km and 3.0 km, respectively. The range of atmospheric depolarization ratio is 2.0 km, 2.0 km, 1.0 km, 1.0 km; the consistency of the dual-channel radial wind speed in the range does not change with the weather.This study provides a reference for the integrated detection of multiple atmospheric elements.