The invention provides a special adhesive for ABS pressure-bearing equipment and a preparation method of the adhesive. The special adhesive for the ABS pressure-bearing equipment comprises the following raw materials in percentages by mass: 40%-50% of acrylonitrile-butadiene-styrene resin, 10%-30% of butanone, 20%-30% of acetone, 1%-3% of a stabilizer, and 1%-3% of a processing auxiliary agent. The special adhesive for the ABS pressure-bearing equipment obtained by the method provided by the invention has a reasonable formula, a good bonding effect on the ABS pressure-bearing equipment, and can meet the requirements of bearing strength in relevant product standards of the ABS pressure-bearing equipment.