Accordingly to the method of the preparing of the tumor vaccine with the use of endothelial cells, live endothelial cells are treated with a protease at mild (non-deadly for cells) conditions, the splitted surface antigens are collected, the treatment of live endothelial cells is repeated after intervals which are necessary for the recovery of the surface antigens by the cells, surface antigens are accumulated until their necessary quantity is reached, the quality of the vaccine is controlled thereafter. The technical result obtained with the use of this invention consists in the enhancement of the efficiency of oncological disease treatment due to the damage of the tumor vessels caused by overcoming of the immune tolerance of organism to the endothelial cells (EC) of tumor vessels. Here one means the overcoming of immune tolerance namely to activated EC, which allows to damage mainly to the tumor vessels by the immune system.
