<p>The electrochemical co-reduction of abundant carbon dioxide (CO₂) and nitrates (NO₃⁻) offers a more sustainable strategy for synthesizing urea, which is a critical nitrogen source for fertilizers. However, constrained proton-coupled electron transfer and limited opportunity for C–N coupling lead to a low urea production rate. In this work, we incorporated ionic liquid and copper [Cu(II)] into the zeolitic imidazolate framework-8 to create the IL@Cu-ZIF-8 catalyst. The as-prepared catalyst demonstrates excellent performance for the co-reduction of CO₂ and NO₃⁻ to urea. At −0.5 V versus the reversible hydrogen electrode, the production rate of urea can reach 140 μmol h⁻¹ cm⁻² (~42,000 mg h⁻¹ g_cat⁻¹), with a Faradaic efficiency toward urea of 55.3%. A total of 0.53 g of pure urea was generated over a 25-cm² IL@Cu-ZIF-8 electrode after 5 h of electrolysis. Mechanism studies show that ionic liquid within the catalyst acts as a molecular bridge, linking the active centres of the catalyst and reactants through versatile interactions, which increases the concentration of surface reactants and reduces the proton-coupled electron transfer barrier, thereby promoting C–N coupling for urea synthesis. This work introduces an efficient strategy for urea electrosynthesis with a high production rate, representing a significant step toward scalable electrochemical synthesis of nitrogen-containing compounds.</p>