A spray head fixing support, comprising a fixed plate (1). At least two spray heads (2) are fixed on the fixed plate (1); the spray heads (2) are fixed on the fixed plate (1) substantially in parallel in a length direction; the spray head (2) is provided with a fixed end (21) matched with the fixed plate (1) in a rotating mode in the length direction, and a free end (22) capable of rotating around the fixed end (21) to adjust a position of the spray head (2); an adjusting unit (3) can conveniently adjust the directions of the spray heads (2) and ensure that the plurality of spray heads (2) maintains parallel; moreover, the plurality of spray heads (2) can be staggered in the length direction, a plurality of operation modes are provided for ink jet operation, and the support is wide in adaptability and suitable for popularization.