Abstract: Here we present Re-Os abundances and Os isotopic compositions of 12 picrites and 6 associated basalts collected from Daju and Shiman sections, Lijiang area, western part of Emeishan large igneous province (ELIP Zhang et al, 2006). The results show that the picrites and associated basalts have distinctive Re-Os isotopic features. The picrites have higher Os abundances (1.5×10-9~3×10-9), and sligtly lower Re abundance (<0.05×10-9) than associated basalts (<0.5×10-9 and <0.8×10-9, respectively). However, the picrites have unradiogenic 187Os/188Os (0.1233~0.1266), but the basalts have supradiogenic 187Os/188Os (0.1338-0.1577). The Re-Os isotope geochemistry of ELIP lava may shed light on the mantle plume origin of ELIP. The mantle plume was derived from the asthenosphere rather than the deep core-mantle boundary. In other word, the ELIP eruption was controlled by interaction between lithosphere and asthenosphere (Saunders, 2005).