In March 2019, wind profile observations were first carried out with the coherent Doppler wind lidar in Suizhong, to the west of Liaodong Bay. The 16-wind compass rose is applied to define local sea breeze and land breeze along the coastline of the study area. The characteristics of sea-land breeze are analyzed and extracted, the feasibility of using Doppler wind lidar to observe sea-land breeze during spring monsoon break is verified, and the variation characteristics of turbulence energy and horizontal recirculation in the atmospheric boundary layer are calculated and analyzed. The results are as shown below. 1) There is obvious sea-land breeze circulation in the spring of Suizhong, and the existence of sea-land breeze observed by wind lidar is consistent with the data by ground automatic weather stations, according with the definition of sea-land breeze day. 2) When sea-land breeze day appears, the horizontal recirculation factor (RF) is small, lower than 0.5 below 1.2 km, which makes pollutants circulate and accumulate, and thus it is likely to form haze weather; however, the height of atmospheric boundary layer in the case of sea breeze can be higher than 1 km, which makes atmospheric pollutants spread to the upper layer and reduce air pollution in the lower layer. The research results provide reference for the design of boundary layer parameterization scheme and air pollution prevention in Suizhong.