This utility model discloses a slit -like coating head and coating machine. The narrow -seam coating head includes the main body of the coating head, and the internal liquid cavity of the coating head body is One end of the main body has a coating slit, the coating slit has a seam that is connected to the outside world, and the coating slit is connected to the fluid capacity cavity; The cavity and the second groove cavity are connected with the passing of the second tank cavity, and the first groove cavity is connected to the feed inlet with at least one manifold. The second slot is connected. The slit -type coating header and dual -slot cavity provided by the utility model can evenly allocate the coating solution. Under the condition of the frequency pump, the coating liquid can be evenly stable and stable. Switching out of the mouth, at the same time, can effectively reduce the production of bubbles during extrusion, avoid the occurrence of pain in painting, and improve the stability and excellent rate of terminal product.