The invention discloses a flocking method of an automobile gasket, which is continuously carried out on a gasket production line including an extruding procedure. A gasket is extruded from an extruding mould of an extruding machine and then is dragged by a subsequent drawing machine to move towards the tail part of a machine, a flocking device is arranged near the extruding mould; a flocking adhesive tape is continuously and synchronously introduced into an extruding hole of the extruding mould by the lint-sticking device at a proper tension, and is continuously and accurately introduced to the surface of a bulged lip sheet of the gasket to be subjected to lint sticking after passing through a flocking adhesive tape guide device arranged at the extruding hole of the extruding mould under the dragging of the gasket moving towards the tail part of the machine continuously; and thermosensitive mucilage glue is coated on the back surface of the flocking adhesive tape, the thermosensitive mucilage glue coated on the back surface of the flocking adhesive tape is enabled to rapidly restore viscosity by using heat on the surface of the extruded gasket, so that the flocking adhesive tape is continuously adhered on the bulged lip sheet.