The Late Permian Emeishan Large Igneous Province (ELIP) is commonly regarded as being located in the western part of the Yangtze craton, SW China, with an asymmetrical shape and a small area. This area, however, is just amaximum estimation because some parts of the ELIP were not recognized or dismembered and destroyed during thebasalts in petrography and geochemistry. Flood basalts in the Sanjiangkou area are composed of the lower part of the lowTi (LT) tholeiite and the upper part of the high-Ti (HT) tholeiite, which is the same as the flood basalts on the western craton, consist of HT tholeiite only. This is the same as the flood basalts within the Yangtze craton. Therefore we argue that these contemporary basalts all originated from the Emeishan mantle plume, and the ELIP could have a significant westward extension with an outcropped area of over 500,000 km2. This new scenario shows that the LT tholeiite occurs on the westem margin of the Yangtze craton, while the HT tholeiite overlying the LT basalts occupies the whole area of the ELIP.