The invention relates to a production technology of a medium and high density fibre panel, wherein, the medium and high density fibre panel can be used for direct printing, and the surface thereof is glabrous. The production technology has the working procedures of wood chip screening and washing, stewing, hot grinding, glue blending and spreading, drying, paving and molding, heat pressing, and cooling. The steam pressure when in stewing ranges from 0.70 to 0.80MPa, and the time is 2 to 5 minutes; molten refined wax, the quality of which is 0.9 to 1.1 percent of absolute dry fiber, is added when in hot grinding defibrination; the pressure in a grinding chamber is lower than the pressure in a stewing cylinder, wherein, the pressure of the stewing cylinder is 0.01 to 0.04MPa; in the work procedure of glue blending and spreading, urea-formaldehyde resin modified by polyvinyl alcohol and firming agent are added into the fibre; after the fibre is dried, the water ratio thereof ranges from 8 percent to 12 percent; before entering into a hot-press, parting medium which is 1ml to 2ml is sprayed onto the upper surface and the lower surface of a plate blank. The production technology has the advantages that by utilizing the technology to produce the fibre panel, the surface texture and the hydrolytic resistance of a plank stuff are improved, the surface processability of the fibre panel is increased, the printing effect of the fibre panel when in direct printing is increased, and the production cost of printing process is lowered.