The invention discloses a manufacturing method of a water hose and manufacturing equipment of the water hose. The invention comprises the following processes: firstly, selected materials, color master batches and batches are fully mixed and then put into a container; secondly, the
mixed materials are arranged into an
extrusion device, the plasticization and melting are performed to the
mixed materials to form molten substance, and the molten substance is continuously extruded from the clearance of a shaping mould by the
extrusion device, so as to form continuous cylindrical blanks; thirdly, one ends of the cylindrical blanks are hauled by a hauling
machine to evenly get into a cooling
sizing device, and then the cooling is performed to the walls of the cylindrical blanks through cooling water; fourthly,
vacuum pumping is performed to a
sizing sleeve in the cooling
sizing device, and the cylindrical blanks are sized to form primary products; fifthly, the primary products are hauled into a cooling water tank, the
water cooling is performed to the primary products to form finished products. The manufacturing equipment of the water hose realizes the vacuum shaping by being equipped with the devices of a sizing cooling tank and a
vacuum pump, etc. The manufacturing method and the manufacturing equipment of the water hose have the advantages of good shaping effect, high
cooling speed, low production cost, greatly enhanced product quality and
high pressure resistance of the finished products, etc.