The utility model relates to liquid silicon rubber manufacturing equipment, in particular to an alkali rubber and end socket agent preparation system, which mainly solves technical problems that in the prior art, raw materials for preparing liquid silicon rubber is manufactured by independent devices and then conveyed into a reaction kettle to realize reaction, the devices are not connected, accordingly manufacturing and transport costs are high and the like. The alkali rubber and end socket agent preparation system comprises a circulating water inlet main pipe (1) and a circulating water return main pipe (2), and is characterized in that the circulating water inlet main pipe (1) and the circulating water return main pipe (2) are respectively connected with an alkali rubber preparation kettle (5) and an end socket agent preparation kettle (6) by a cooling water supply pipe (3) and a cooling water return pipe (4), the end socket agent preparation kettle is connected with an end socket agent storage tank (8) by an end socket agent pipe (7), and both the alkali rubber preparation kettle and the end socket agent preparation kettle are connected with a vacuum system (10) by vacuum pipes (9).