The invention discloses an E1-grade urea-formaldehyde resin adhesive for a medium density fiberboard generated by a continuous rolling process, which consists of 90 to 110 weight parts of urea resin and 5 to 10 weight parts of compound curing agent, wherein the urea resin is prepared by the reaction of formaldehyde, urea and melamine; and the compound curing agent consists of 140 to 160 weight parts of ammonium chloride, 6 to 8 weight parts of ferric trichloride and 635 to 650 weight parts of water. The E1-grade urea-formaldehyde resin adhesive for the medium density fiberboard generated by the continuous rolling process has the advantages that: 1) the tack is low, so the E1-grade urea-formaldehyde resin adhesive is applicable to a medium density fiberboard assembly line which adopts the continuous rolling process, in particular to the medium density fiberboard assembly line which adopts a continuous pressing process; 2) the production operation is relatively simple, the auxiliary material is single and readily available, the used amount is less in comparison with other E1-grade urea-formaldehyde resin adhesive formulas and the cost is low; 3) the adhesive has relatively high static bending strength and internal bonding strength and can make the strength of the finished product meet requirements in the continuous rolling assembly line.