Follow the advance of surgical treatment in complex congenital heart disease, the application of right ventricular(RV)-bypass procedures in RV-hypoplasia/dysfunction was gradually recognized; the pathological pattern of RV-hypoplasia/dysfunction, the histological change of RV-bypass operation and the option on different operative procedure, emphasis on the indication of bidirectional superior cavopulmonary anastomosis(BCPA),the form and method of procedure,and peri-operative management were reviewed in this paper,the optimal age for BCPA, the optimal timing for conversion to Fontan procedure, on pump or off pump, section of the pulmonary trunk, and its difference from hemi-Fontan and 1 1/2 ventricular operation were discussed.