Objective: The study was aimed to observe the impact of Eucommia ulmoides leaves extract and chlorogenic acid on invasion and migration of colon cancer cells. Methods: HPLC was applied to determine chlorogenic acid and transwell chambers method was applied to detect inhibition rate on invasion and migration of HCT116,Lo Vo cell line. Results: Invasion ratio of HCT116 cells previously treated with Eucommia ulmoides leaves extract solution reduced 49. 72% relative to that of the blank group,and that of chlorogenic acid was 66. 32%. Invasion re...