The invention relates to the technical field of packaging paper, in particular to environment-friendly high-strength printing packaging paper and a production technology thereof. The production technology comprises the following steps of S1, pulping, specifically, smashing recycled waste cartons through a smashing machine and then putting into a stirring machine, adding warm water into the stirring machine for stirring, and preparing paper pulp uniform in texture, S2, filtering, specifically, filtering the paper pulp in the S1 by using a 200-300-mesh filter screen to remove impurities with larger particles, and then filtering the paper pulp by using a 500-600-mesh filter screen to obtain paper pulp A with thicker fibers and paper pulp B with thinner fibers, and S3, dehydrating, specifically, dehydrating the paper pulp A and the paper pulp B in the S2 by adopting a dehydrator respectively, and distributing the dehydrated paper pulp by adopting a pulp distributor respectively. The lower corrugated layer, the upper corrugated layer and the middle corrugated layer are distributed in a staggered mode, so that the strength of the prepared packaging paper is higher, the gravity borne by the packaging paper during product packaging is larger, the high-strength effect of the packaging paper is achieved, and the service life of the packaging paper is prolonged.