Abstract: Continuous ambulatory peritoneal dialysis (CAPD) is currently the most widely used treatment mode. Daytime ambulatory peritoneal dialysis(DAPD) is similar to CAPD in terms of dialysis dose,number of exchanges and dwell time,however empty dialysate at night to maintain “dry abdomen”. The discussion herein will review the advantages and rational application of DAPD in protecting residual renal function,reducing the occurrence of cardiovascular events and extension PD reatment time.