Objective: To observe effect of combination of TCM-WM with high colonic lavement for delaying renal failure. Methods: 98 cases of renal failure at compensatory phase were randomly divided into a treatment group treated with high colonic lavement, twice each week. 2 hours each time, and a control group treated with oral administration of coated aldehyde oxystarch,10g each time, thrice each day, 3 months constituting one course. Results: After lavenment. symptoms were improved, deceaseing velosity of the clearance rate of endogenous creatinine in blood and urine slowed lowered, renal survival rate of kidney increased, and the interval of dialasis and other replacement therapy obviously postponed in the treatment group as compared with that before treatment and the control group. Conclusion: The high colonic lavement has obvious therapeutiv effect in delaying renal failure velosity with a smaller stimulation to the stomach and smal intestine. It is an effective way for conservation treatment of renal failure.