An anticarcinogenic slow release injection carrying an angiogenesis inhibitor and a synergist thereof is made from slow release microspheres and a dissolvant. The slow release microspheres comprise anticancer active components and a slow release adjuvant, and the dissolvant is a special dissolvant containing a suspending agent. The anticancer active components are angiogenesis inhibitors such as gefitinib, erlotinib, lapatinib, vatalanib, pelitinib, thalidomide, ranolamine, angiostatin, endostatin, imatinib, thalidomide, ranolamine, simatinib, dasatinib, avastin, kanatini, sorafenib, sunitinib, telstar or panitoma, and the like, and/or cytotoxic drugs selected from a phosphoinositide-3-kinase inhibitor, pyrimidine analogue and/or a DNA repair enzyme inhibitor; the slow release adjuvant is biocompatible macromolecule; the viscosity of the suspending agent is 100cp-3,000cp (at the temperature of 20-30 DEG C), and the suspending agent is selected from sodium carboxymethyl cellulose, and the like. The slow release microspheres can be also made into a slow release implant, and the curative effects of non-operative therapies such as radiotherapy, chemotherapy, and the like, can be improved when the slow release injection is injected or placed in tumors or around the tumors.