The present invention provides taxanes compounds with a formula (I) or formula (II) structure, a method for preparing the compounds, as well as the use of the compositions containing the compounds, pharmaceutically acceptable salts and solvates thereof as active ingredients in manufacturing oral antitumor medicaments, In formula (I), R 1 is -COR 6 , -COOR 6 or -CONR 7a R 7b ; R 2 is a C1-C6 alkyl, a C1-C6 alkenyl, a substituted hydrocarbon group, a heterocyclic group, an aromatic group or a substituted aromatic group; R 3 is -OR 6 , -OCOOR 6 , -OCOSR 6 or -OCONR 7a R 7b ; R 4 is -OR 6 , -OCOOR 6 , -OCOSR 6 , - OCONR 7a R 7b or H; wherein, R 6 is a C1-C6 alkyl, a C1-C6 alkenyl, a C1-C6 alkynyl, a substituted hydrocarbon group, an aromatic group or a heterocyclic group; R 7a and R 7b are respectively hydrogen, a hydrocarbon group, a substituted hydrocarbon group or a heterocyclic group. In formula (II), R 1 is -COR 6 or -COOR 6 ; R 2 is an aromatic group; R 3 is - OR 6 ; wherein, R 6 is a C1-C6 alkyl, a C1-C6 alkenyl, a C1-C6 alkynyl, a substituted hydrocarbon group, an aromatic group or a heterocyclic group.