Abstract: In recent years,due to the intense competition of world barium salt market,new requests for the quality of barium carbonate are being proposed continually by overseas users,and many of them all demand to control alumina content in barium carbonate(note:National Standards do not have this request).In order to satisfy the market demand and to enhance product′s competitiveness,some beneficial discussion on determination methods of alumina in barium carbonate was made.By access to information,determination methods of alumina are mainly including chrome azurol S method and aluminon method.Experimental comparison results indicated:experimental error of the former method is big and result is inaccurate;but the latter one is fast,accurate and has good reproducibility.Therefore,it could meet the requirements of routine testing.