The invention discloses a plastic rib spiral pipe without adhesive-bonded joints and manufacturing technique thereof. The plastic rib spiral pipe without the adhesive-bonded joints and the manufacturing technique thereof comprise a plastic rib spiral pipe body, the inner wall of the plastic rib spiral pipe body is a one-piece smooth surface, the outer wall of the plastic rib spiral pipe body is a one-piece smooth surface, and spiral plastic ribs wind around the outer wall of the plastic rib spiral pipe. The manufacturing technique of the plastic rib spiral pipe without the adhesive-bonded joints comprises the steps that plastic rib pipe materials are extruded from the head of an extruder, and the plastic rib pipe body is formed in a plastic rib pipe forming channel; meanwhile, spiral plastic rib materials enter a spiral plastic rib material injection channel of a fixed sleeve, then the spiral plastic rib materials are extruded from a spiral-shaped material extruding channel of a spiral sleeve and wind around the plastic rib pipe body, and the plastic rib spiral pipe without the adhesive-bonded joints is formed. The plastic rib spiral pipe without the adhesive-bonded joints and the manufacturing technique thereof have the advantages that the inner wall of the plastic rib spiral pipe is smooth and no adhesive-bonded joints exist, so that the product quality is greatly improved and the stability is achieved; due to the fact that no adhesive-bonded joints exist on the plastic rib spiral pipe, the conveying of the materials are more smooth and no residues exist.