Abstract: The tectonic slices (blocks) within the Garze-Litang suture zone, western Sichuan have been subjected to metamorphism and deformation, and may be assigned to generally ordered and locally disordered non-Smithian strata. In the light of rock association, origin, age, deformation and metamorphism, disintegration and collage, migration and displacement, the "Litang Ophiolite Group" is redefined as the "Litang Ophiolitic Melange Group", which may be redivided into two formation complexes, i.e. the Kar Ophiolite Formation and Waneng Ophiolite Formation and five types of exotic blocks composed of clastics and marbles. The result of research in this study is believed to be significant for the future study of orogenic mechanisms and tectonic history of the Garze-Litang suture zone, western Sichuan