Ilmenite and titanomagnetite are the most common accessory minerals in igneous rocks. Understanding the relationship between yttrium, Ti/Y and fractional crystallization/accumulation of Fe—Ti oxides will help to discuss the petrogenesis by using trace elements. The various amount of titanomagnetite or ilmenite is generally hosted in the flood basalts and the genetically related layered intrusions within the Emeishan large igneous province (ELIP). In this paper, the investigation on the correlation of TiO2 contents with FeO*, Y and Ti/Y for the ELIP has shown that our conclusion is not completely consistent with the previous experimental work. yttrium appears to be of compatible element in Fe—Ti oxides at TiO2<～7%, but of incompatible elements at TiO2>～7%. However, Ti/Y ratios increase with increasing TiO2 if there are some Fe—Ti oxides in the rocks, and therefore they cannot be considered as an indicator of the source. In contrast, Ti/Y ratios might be the indicator of the source if there are little or no Fe—Ti oxides, or absence of the correlation between Ti/Y ratios and TiO2 contents.