Objective To study the main mechanisms of Aitongxiao Recipe(ATXR) for anti-tumor at the molecularlevel,and to clarify different efficient drugs’ roles in antitumor,thus in-depth explaining the objectivity and substance of “cancer toxic” theory. Methods Walker-256 tumor strain was used for Wistar rat transplanted liver Objective To study the main mechanisms of Aitongxiao Recipe (ATXR) for anti-tumor at the molecular level, and to clarify different efficient drugs’ roles in antitumor, thus in-depth explaining the objectivity and substance of “cancer toxic ” theory. Methods Walker-256 tumor strain was used for Wistar rat transplanted liver