The extract solution, prepared from tender tips and stems of white asparagus respectiely, was perfused into the stomach of mice, inoculated in subcutis with S180 ascitic cells in a dose of 0.5ml/mouse for four limes every other day. The results showed that the tumour size of mice given the extract solution became obviously smaller than that of the control group. The inhibitory rate associated with tender tips extract, stems extract and stems alcohol extract was 71.44, 73.07 and 73.54% respectively.