Abstract: The experiment compares variational direction of performance target with different synthetical technics of modified UF resin,and the effects of different synthetical technics on agglutination performance. According to results of experiment, the reduced pH value of additive reaction can be propitious to performance target of modified UF resin. The increased temperature of additive reaction can improve general performance of modified UF resin, it is the same as the medium time of additive reaction. The decreased pH value of polycondensation reactions have good effects on performance target of modified UF resin except storage life. Higher or lower temperature of polycondensation reaction has no advantage of allround properties. The changes of initial molar ratio can affect storage life clearly, the higher initial molar ratio the longer storage life. Formaldehyde emission increases as initial molar ratio reduces.