The invention relates to a preparation method for radiopolymerized slow-release high-
polymer material. The method includes the following steps: slow-release material as high-
polymer material blended according to different proportions or slow-release high-
polymer material uniformly mixed with
drug to be slowly released is put into a plastic container without
chlorine atoms, sealed, vacuumized, then saturated with high-purity
nitrogen, put into a thermal insulating container under minus 18 DEG C and irradiated by 60 Co Gamma rays or 5 MeV to 10MeV of
electron beam, the
radiation dose is 9.9kGy to 20kGy, the lowest effective
dose is 9.9kGy, the
maximum tolerated dose is 20kGy, the ununiformity of the
radiation dose is lower than 1.3, the high-polymer material is polymerized, and the radiopolymerized slow-release high-polymer material is then produced into the shapes of tablets, granules and needles according to different purposes, and is used for fixing chemicals,
enzyme and
bacteria after water swelling. The invention overcomes the defects of the prior art, and provides the method for preparing the slow-release material, which can better promote radiopolymerization.