PURPOSE: A composition containing Cinnamomum cassia Blume is provided to induce cell apoptosis and to effectively treat prostate cancer.CONSTITUTION: A composition for treating prostate cancer contains Cinnamomum cassia Blume. An anticancer composition contains Cinnamomum cassia Blume as an active ingredient, and additionally contains pharmaceutically acceptable carrier or diluents. The composition is used by alternately administering with other cancer therapy. The composition is administered with one or more chemotherapeutic agents contained in a liposome formulation.COPYRIGHT KIPO 2012본 발명은 계지의 신규한 용도에 관한 것이다. 구체적으로 본 발명은 계지를 포함하는 전립선암 치료용 조성물에 관한 것이다. 본 발명에 따른 전립선암 치료용 조성물은 전립선암 세포의 성장을 억제하고 세포사멸을 유도하는 효과가 있다.