n improved method for the determination of immunity antibody by papain testrpT)for blood transfusion compatibility is described. This method was compared withthetraditional papain test and low ionic strength antiglobulin test(LISAGT)in determingthe agglutination reaction strength of anti- Rh antibodies (anti-D. anti- c

anti- E andanti-c).The results show that there is no significant difference (P>0.20) betweenmean titer score datum (MTSD) of this method with those of LISAGT and PT. Thismethod is more simple and rapid than conventional method (LISAGT and PT

Thismethod is more simple and rapid than conventional method(LISAGT and PT) and easvto use for clinical laboratory diagnosis. The sensitivity of this method is comparable withthat of PT. No special instrument is needed. It d eserves extensive application。