Irradiation vulcanization of polybutadiene rubber latex (PBL) in the presence of radiation sensitizer n-butyl methacrylate (n-BMA) and n-butyl acrylate (n-BA) by ,60,Co γ-rays was studied. The crosslinking mechanism and kinetics of irradiation vulcanization were investigated. The effect of absorbed doses and the sensitizer contents on the gel fraction was evaluated, and the micro structure, mechanical and dynamic mechanical properties of latex films were characterized by means of FTIR and DMA, etc. The results indicated that both of n-BMA and n-BA showed vulcanization enhancement for PBL. With increment of crosslink density, the tensile strength and Young’s modulus increased while elongation at break decreased. Moreover, as heavy crosslinking restrained the movement of chains the glass transition temperature (,T,g,) increased, and the storage modulus (,E,’) and loss modulus (,E,") at room temperature increased as well. The deviation from the Charlesby-Pinner equation revealed PBL enhancement vulcanization, which didn’t fit well with kinetic randomly.