The southwest vortex is a special weather system that forms on the east side of the Tibet plateau.However,at present there is no uniform standard for the identification of the southwest vortex.In this study,based on the analysis of the main features of the southwest vortex,the HVW identification method which is suitable for the southwest vortex is designed,by combining the height,vorticity and wind.This method is then applied to the GRAPES-MESO high-precision grid analysis data from June to August in 2014,and the paper compares the difference between this method and the actual situation of the southwest vortex on the weather chart.Through the analysis of the identification of the southwest vortex,the generation and demise time,the center of the vortex and its strength,the following conclusions are obtained:(1) The HVW identification method can effectively identify the high-precision grid data in the southwest vortex process,and the coincidence rate with subjective analysis on the grid data is 87.5%.In addition,the accuracy of HVW identification method can reach 90.9% in the case of the southwest vortex,which can be reproduced in both the weather map and grid data,thereby indicating that the HVW identification method can effectively capture the southwest vortex.(2) The HVW identification method can reasonably analyze the generation and demise time of the southwest vortex life time.(3) The analysis of the location deviation of the southwest vortex center shows that the southwest vortex center position of the HVW is located near the southwest low vortex pressure,and that it is also located within the convergence center of wind field.(4) The evaluation of the strength of the southwest vortex center shows that the difference between the subjective analysis on the grid data and the HVW method is almost negligible,which reveals that the HVW identification method contains the height information of the grid data.The southwest vortex center intensity of the recognition method can be used instead of the subjective analysis of the grid data.In this paper,the analysis of the southwest vortex process from June to August,2014 is carried out to verify the feasibility,rationality and accuracy of the HVW stepwise cyclic location method.Compared with the subjective visual analysis of the weather map,it is shown that this method can effectively identify the southwest vortex weather system,reduce the error caused by the subjective analysis,and reduce the workload of the business analysis.