Jacking positioning device and marking equipment

The utility model provides a jacking and positioning device and marking equipment. The jacking and positioning device comprises a bearing seat. The bearing seat comprises a bearing station used for placing a tray; the first driving piece in the jacking mechanism can drive the jacking piece to move upwards, the protruding block penetrates through the hole in the tray and jacks the workpiece in the tray away from the tray, the limiting piece is used for limiting the height of the workpiece, and when the protruding block ascends to a certain height to enable the workpiece to abut against the limiting piece, the upper end of the workpiece is limited by the limiting piece to be kept flush at the moment. Therefore, the workpieces are accurately positioned in the height direction, the heights of all the workpieces are kept consistent, the focus of the laser is controlled at the height positions of the upper surfaces of the workpieces during marking, the phenomenon of out-of-focus caused by different heights of the w