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), R1 is —COR6, —COOR6 or —CONR7aR7b; R2 is a C1-C6 alkyl, a C1-C6 alkenyl, a substituted hydrocarbon group, a heterocyclic group, an aromatic group or a substituted aromatic group; R3 is —OR6, —OCOOR6, —OCOSR6 or —OCONR7aR7b; R4 is —OR6, —OCOOR6, —OCOSR6, —OCONR7aR7b or H; wherein, R6 is a C1-C6 alkyl, a C1-C6 alkenyl, a C1-C6 alkynyl, a substituted hydrocarbon group, an aromatic group or a heterocyclic group; R7a and R7b are respectively hydrogen, a hydrocarbon group, a substituted hydrocarbon group or a heterocyclic group. In formula (II), R1 is —COR6 or —COOR6; R2 is an aromatic group; R3 is —OR6; wherein, R6 is a C1-C6 alkyl, a C1-C6 alkenyl, a C1-C6 alkynyl, a substituted hydrocarbon group, an aromatic group or a heterocyclic group.