The invention discloses equipment for spraying anti static liquid on a surface. The equipment is used for forming an anti static layer on the surface of a glass reinforced plastic anchor rod. The equipment for spraying the anti static liquid on the surface comprises a liquid storage container, a liquid spraying tank, a liquid spraying valve, and an air compressor; the anti static liquid is stored in the liquid storage container; the liquid spraying tank is used for defining the space, on which the anti static liquid is sprayed, of the surface of the glass reinforced plastic anchor rod, and the glass reinforced plastic anchor rod to be sprayed passes through the liquid spraying tank; the liquid spraying valve is arranged in the liquid spraying tank, is communicated with fluid of the liquid storage container, and is used for spraying the anti static liquid on the surface of the glass reinforced plastic anchor rod which passes through the liquid spraying tank; and the air compressor provides compressed air for the liquid spraying valve to ensure that the anti static liquid in the liquid storage container is absorbed into the liquid spraying valve and the anti static liquid is compressed out of the spraying valve along with the sprayed air flow to be sprayed onto the surface of the glass reinforced plastic anchor rod. The invention also discloses a method for forming the anti static layer on the surface of the glass reinforced plastic anchor rod, so a uniform anti static layer can be effectively formed on the surface of the glass reinforced plastic anchor rod.