The invention discloses a sponge printing technology. The sponge printing technology comprises the following technological steps: step 1, a piece of sponge is coiled to form a sponge coil, and the sponge coil is fed; step 2, the sponge coil enters a cloth hopper; step 3, the tension of the sponge is adjusted, the methods that the coil can be opened at a front position and rolled at a rear position automatically, the sponging feeding speed is in an over-feeding mode at the front position and the rear position, the moving time of the sponge is fixed, and printing equipment can be programmed and controlled are used, a multi-unit synchronous variable-frequency speed-regulating device is used, and the elastic ratio of the sponge is determined to be 1:1.13 to 1.16 :4; step 4, the sponge is printed in a printing room, printing ink which is well mixed is poured into the relatively airtight printing room, one side of a printing roller is adjusted to be soaked into an ink groove, the temperature of the printing room is set to be 35 DEG C to 40 DEG C, and the humidity of the printing room is set to be 35 % to 40 %; step 5, the sponge is dried in drying ovens, wherein the sponge is dried in four drying processes, namely a first heating drying process, a first natural air drying process, a second heating drying process and a second natural air drying process, the temperature of each drying oven is controlled to be 50 DEG C to 55 DEG C, the number of the using drying ovens is 4, a first drying oven and a third drying oven are heating drying ovens, and a second drying oven and a fourth drying oven are natural air drying ovens; and step 6, the sponge is cut automatically. The sponge printing technology is used for printing the ultrathin high-elasticity sponge in a production line, and printed patterns of the sponge are enabled to be realistic without distortion or breakage.