The present invention provides a pharmaceutical composition for oral administration, consisting essentially of (a) 4 to 40 % by weight of a taxane, (b) 10 to 40 % by weight of polyoxyl glyceryl fatty acid ester, (c) 30 to 70 % by weight of monooleoyl glycerol or 30 to 70 % by weight of an oleoyl glycerol complex having 30 to 65 % by weight of monooleoyl glycerol contents; 15 to 50 % by weight of dioleoyl glycerol contents; and 2 to 20 % by weight of trioleoyl glycerol contents, and (d) 5 to 30 % by weight of a surfactant and a process for preparing the same.