The production process of PEX floor heating pipe mainly includes the steps of raw material preparation, extrusion, cooling and curing, quality inspection and finished product inspection. The steps of raw material preparation include raw material inspection, raw material mixing, raw material discharge, etc.; the steps of extrusion and molding include extrusion, cooling, stretching, molding, etc.; the steps of cooling and curing include cooling, curing, shrinking, etc.; the steps of quality inspection include appearance inspection, dimensional inspection, performance inspection, etc.; the steps of finished product inspection include packaging, labeling, shipping, etc.