The invention provides a double-component ceramic tile back adhesive. The double-component ceramic tile back adhesive comprises, by weight, 40-70 parts of acrylate emulsion, 30-50 parts of styrene-acrylate copolymer emulsion, 1-5 parts of preservatives, 1-5 parts of defoaming agent and 0.5-1 part of thickening agent. The double-component ceramic tile back adhesive has the advantages that the backadhesive is coordinated with cement mortar during use, a layer of back adhesive is plastered on the back of a ceramic tile, then the cement mortar is directly applied, and the ceramic tile is immediately adhered to a wall; the double-component ceramic tile back adhesive is convenient in construction, simple, efficient, good in adhering effect, capable of increasing bonding strength between the ceramic tile and the cement base material, capable of also increasing bonding strength between the cement base material and the wall, short in drying time, convenient and efficient in construction, and capable of avoiding the hollowing, peeling and falling off problems of ceramic tiles.