The invention discloses a drawing method and device for a gallop distribution map. The drawing method comprises the following steps: 1, setting a drawing range for the gallop distribution map; acquiring meteorological station point coordinate data of all meteorological stations inside the drawing range as well as corresponding meteorological data and geographic data; setting graded standard of the meteorological data and the geographic data, and enabling the acquired meteorological data and the geographic data of all meteorological stations to generate corresponding graded data according to the graded standards; setting meteorological weight and geographic weight and generating gallop scores of all meteorological stations according to graded data corresponding to the meteorological data and the geographic data in all meteorological stations; and generating the gallop distribution map within the drawing range by using an interpolation and surface fitting method according to gallop values of all the meteorological stations and point coordinate data of the meteorological stations. The drawing method provided by the invention has a high confidence level, the accuracy is enhanced greatly as compared with the accuracy in the conventional method, and meanwhile, limitations from the regions, wired circuits, running time of circuits, and the like can be avoided.