The present invention relates to a nozzle cleaning blade of a dispensing jet valve. The nozzle cleaning blade includes a plurality of blades (20) vertically formed at right and left of the top surface of a fixing plate (21) on a working tray (T), which moves laterally along guide rails in a state where a target product is seated on the working tray (T), so as to clean a nozzle (12) of a jet valve (10) which is mounted movably in vertical and horizontal directions and injects a coating liquid in order to join or process a specific portion of the target product. The fixing plate (21) is fixed to a bracket (30) which is detachably mounted on the top surface of the working tray (T), and the blades (20) are inclinedly formed on the fixing plate (21) in a lateral direction.