The invention discloses a continuous type coating production line, which comprises spray rooms, a conveying belt, a cooling section, drying rooms, water and gas supply and exhaust systems, a slag removal system and a human and material flow supply platform, wherein the spray rooms, the conveying belt, the cooling section and the drying rooms are arranged in a room, the water and air supply and exhaust systems and the slag removal system are arranged outside the room, the spray rooms are arranged near a partition, and are connected with the water and air supply and exhaust systems outside the partition, the water and air supply and exhaust systems convey waste water and waste gas to the slag removal system, the spray rooms and the drying rooms arranged in the room are connected in series to form a production line, the drying room at the final section is connected with the cooling section, a to-be-processed workpiece which is conveyed on the conveying belt sequentially passes through each spray room, each drying room and the cooling section, and the human and material flow supply platform is in charge of supplying coating for each spray room. The continuous type coating production line has the advantages that the spraying processing is separated form the slag removal treatment, the spray rooms are separated from the air and water supply and exhaust systems by the partition, the cleanliness and coating quality of the spray rooms are improved, the transmitting power consumption is decreased, and the treatment efficiency is improved.