Objective: To observe effects of Ficus carica polysaccharide (FCPS) on tumor bearing mice. Methods: The model of S 180 bearing mice and EAC bearing mice were established, tumor cells were inoculated under the skin of right armpit or in abdominal cavity in mice after FCPS being administered orally for ten days, to calculate inhibitive rate of tumor and survial time of mice. Results: FCPS could significantly prevent the growth of tumor, there were no effects on survival time of mice.Conclusion: FCPS had a good antineoplastic effect. It is worth further study.