The invention discloses an adjustable board multi-angle drilling device for furniture processing. The adjustable board multi-angle drilling device for furniture processing comprises a base, a first air cylinder, a pushing plate, a bearing block, a top plate, a second air cylinder, a connecting plate, an adjusting plate, a motor, a drilling column and a controller; the device is characterized in that the base is arranged on a support, a positioning plate is arranged on a stand column, the first air cylinder is arranged on the bottom of the base, the pushing plate is arranged on a first piston rod, a bearing groove is formed in the bearing block, the top plate is arranged on the stand column, the second air cylinder is arranged on the top plate, the connecting plate is arranged on a second piston rod, a movable rolling sleeve is arranged in a fixed groove, and connecting shafts are arranged on the side faces of the two ends of the adjusting plate. The drilling column is arranged to be ofa structure capable of being replaced on a transmission shaft through a mounting block, according to the drilling need of a board, the drilling column of the proper structure is selected, the application range of the drilling device is widened, and the board drilling need is improved.