A method for manufacturing a doormat, including steps of: preparing a PVC loop mat and a substrate; and before or after the PVC loop mat is adhered to the substrate, spraying a different color of paint made of a resin onto the PVC loop mat by way of pressurized spraying to form desired pictures or characters on predetermined portions of the PVC loop mat. Thereafter, a doormat with a PVC loop mat having different colors of pictures is achieved.