The invention provides a method for producing wrapping paper by pulping of hollow nuts of oil palms with a mechanical process, which comprises that: step one, raw materials are washed by water to remove
residual oil, sand grains and dust; step two, a penetrant is added for prepenetration treatment; step three, the raw materials are extruded for
dehydration and pressed into filaments, and the filaments are sent into a
first pass of thermofiner for coarse
grinding and separated into unscreened pulp; step four, the unscreened pulp is added with water for
dilution, and respectively screened into the unscreened pulp and screened pulp which are then respectively extruded and filtered; step five, the unscreened pulp enters a second pass of thermofiner for hot
grinding after being condensed, and the ground pulp and the screened pulp from a pulp cleaner of the step four are mixed together; step six, the ground pulp is mixed evenly and undergoes pulp screening after pulp
dilution, the unscreened pulp enters the second pass of pulping
machine for pulping again, and the screened pulp is condensed and ready for a third pass of fine pulping; step seven, the mixed pulp is further ground finely; and step eight, the pulp is put onto a net by a
paper machine for paper making to produce
carton boards or high strength corrugating paper. The method is characterized by high yield, low cost and small
pollution.