The utility model provides a steel belt granulating mechanism of hot melt adhesive production equipment, belongs to the technical field of machinery, and solves the problem of poor forming effect of the existing granulating equipment. The steel belt granulation mechanism of the hot melt adhesive production equipment comprises a rack, rollers are arranged at the two ends of the rack respectively, the two rollers are covered with a steel belt, a plurality of cooling water pipes are arranged at the bottom of the rack, and the cooling water pipes convey cooling water upwards towards the steel belt; the distributing device is arranged at one end of the rack and located above the corresponding roller, and the distributing device is used for receiving the sizing material and evenly distributing the sizing material on the steel belt in a strip-shaped structure; the knife rest is arranged at the other end of the rack, a plurality of blades are arranged around the knife rest, and when the steelbelt drives the sizing material to get close to the knife rest, the knife rest rotates to drive the blades to shear the sizing material into flaky colloidal particles. The utility model has the characteristic of good forming quality.