【Abstract】Objective To study the efficiency of hemodialysis in maintaining the dialysis adequacy of peritoneal dialysis patients. Methods A combined therapy of hemodialysis and peritoneal dialysis was performed in 17 peritoneal dialysis patients of our hospital. We observed the dialysis adequacy and nutritional status of those patients before and after the combined therapy. Results After the combined therapy, those patients had higher dialysis adequacy than before combined therapy, the nutritional status and quality of live were significantly improved. Conclusion The combined therapy of PD and HD can improve the dialysis adequacy and live quality in PD patients.