The invention provides a drainage tube fixing dressing patch (device) and belongs to the technical field of medical instruments. The drainage tube fixing dressing patch (device) comprises a hydrocolloid layer paster, a rotatable buckle, a ring and a bath waterproof cover. The rotatable buckle is fixed to the hydrocolloid layer paster, two reverse-direction nylon ropes and a gasket are connected into the rotatable buckle, a hole is formed in the center of a sticker behind the hydrocolloid layer paster, a drainage tube penetrates out of the hole, and the ring is connected with a buckle fixing hole through nylon. The hydrocolloid layer paster comprises a hydrocolloid layer, a non-woven fabric layer and a stripping layer. The hydrocolloid layer is fixed to the surface of the non-woven fabric layer. The hydrocolloid layer is prepared from agarose, carboxymethylcellulose, sodium carboxymethylcellulose, methylcellulose, gelatin and polyethylene glycol. The stripping layer can be stripped from the hydrocolloid layer at 100%. The drainage tube fixing dressing patch (device) does not need sewing and is waterproof, the drainage tube can be more firmly fixed, medical negligence is avoided, the safety of a patient is guaranteed, and the pain of a patient is reduced.