The invention discloses a hydrogenation method for improving the yield of a bisphenol-A type hydrogenated epoxy resin. The method comprises a step of uniformly dispersing hydrogen which is input into a hydrogenation reaction tank by using a guidance gas stirrer with aspiration, exhaust and stirring functions in the hydrogenation reaction tank through the aspiration, exhaust and stirring of the guidance gas stirrer. The method ensures that reaction fluid contains high-concentration dissolved hydrogen, so that a hydrogenation catalyst has extremely high activity and the rate of a hydrogenation reaction is accelerated; and the method can ensure that the hydrogenation reaction is performed at low temperature and under low pressure, even increase the yield of the bisphenol-A type hydrogenated epoxy resin to be between 99.0 and 99.9 percent, greatly reduce the construction and maintenance cost of the hydrogenation reaction tank, and improve economic benefit.