Objective:To evaluate the effect of an improvement of operation technological process and method  in pancraticoduodenectomy(PD). 
Methods:Twenty-two modified PD cases were performed by improvement of the operation technological process and method, and compared to the traditional PD in regard to operation time, postoperation complications, hospital stay after surgery and hospitalization costs.  
Results:All cases had PD performed successfully. Compared to the tradional group, the modified guoup had significantly shorter operation time, and decrease of pancreatic fistula, hospital stay after surgery and hospitalization costs (all P<0.05). 
Conclusions:Modified PD has the advantages of easier operation, decrease operation time, less complications, shorter hospital stay and lower hospitalization costs,and  is an effective improvement of PD．