There are a lot of Permian igneous rocks which are widely distributed in Tarim Basin. Some researchers have done a lot of research on Permian volcanic rocks, but the results are not very perfect because of the limitations of outcrops, drilling and aeromagnetic data. However, with the progress of oil exploration in Tarim oil field in recent years, much more logging and seismic data is available, which makes the distribution of basalt in the Tarim Basin much more pefect. In this paper the distribution of Permian basalt in the central Tarim area is redefined through the comprehensive study of outcrops, drilling, logging, 2D seismic interpretation, especially the new approach based on down hole logging data interpretation, which improvs the much wider distribution of the basalt in Tarim Basin and is very important for the further research on the spacial distribution of the basalt in the hole basin.