Abstract: This paper briefly explains the principle and method in compiling the vegetation map of Guangxi with the scale of 1:2500000. Here the legend is described as well. At present, areas occupied by the main zonal vegetation type in Guangxi are too small to present on this map. In order to represent them completely, the following ways are adopted. If the same vegetation units are congregate, these areas may be portrayed as pattern by enlargement——combining them together. Otherwise, the separate areas can be indicated by symbols which are still given their normal position in the legend for keeping the later systematic.On the basis of phytocoenological characters, the legend is arranged in three classes, rarely in four. The physiognomy features of vegetation are considered in the first class; the life form of the dominant compositions of phytocoenosis, in the second class; the dominant and characteristic species, in the third; the dominant species in the scrub layer in the fourth. Only the later two classes are revealed on the map. As far as the vegetation classification is concerned, they correspond to the formation or formation combination and association group separately. The cultural vegetation is classified based on the cropping system. Some sorts of the timber forests and economic forests appear frequently and always occupy small areas, so it is impossible to show all of them on the map. In this case symbols have been used to be placed on their principal producing areas. Some relic or significant forests are also expressed by symbols which are included in the supplementary legend. With 44 items in the legend and 7 in supplementary legend, the map shows briefly the main regularity of geographical distribution of vegetation in Guangxi. It may be used as a reference for compilation of very small scale map of regionalization of agriculture, forestry and pasturage.