The invention relates to a two-component epoxy resin water plugging agent and a using method thereof. Currently, polymers represented by polyacrylamide and polyacrylic acid are used mostly and such polymers dissolve and degrade, so that the plugging effect gradually weakens or even disappear and thus an oil-water sharing passage is plugged and a ground layer is greatly damaged. The two-component epoxy resin water plugging agent is characterized by comprising epoxy resin-coated particles and polyamine-coated particles in the mass ratio of 1:2, wherein a hard core material is coated with oil-soluble epoxy resin to form the epoxy resin-coated particles; the hard core material is coated with a polyamine substance to form the polyamine-coated particles; the mass of the oil-soluble epoxy resin and the mass of the polyamine substance account for 10% of that of the hard core material. The two-component epoxy resin water plugging agent does not produce gel in the water plugging process; the using amount of epoxy resin can be reduced, so that the cost of a water plugging material can be greatly reduced.