The invention discloses a water-based dyeing mortar material and a preparation method thereof in the technical field of coating preparation, the water-based dyeing mortar material comprises the following components in parts by weight: 60-80 parts of emulsion, 0.2-0.5 part of a dispersing wetting agent, 5-10 parts of a film forming auxiliary agent, 2-5 parts of other auxiliary agents, 1-1.5 parts of a pH regulator, 1-1.5 parts of toner and 10-20 parts of deionized water, has excellent color fastness, mechanical strength, water resistance, boiling water resistance, acid and alkali resistance, solvent resistance, natural aging resistance, artificial aging resistance and other outstanding performances, has environmentally-friendliness, zero VOC, no production of industrial three wastes, no color restriction, optional color mixing, convenient production, simple color mixing process, low equipment requirements, low cost, water as a solvent, low cost of raw materials, natural drying, and no energy consumption, and can be used for building interior and exterior wall paint, permeable bricks, artificial stone, integrated boards and handicrafts.