<p>Zeolite has become an ideal metal carrier with excellent shape-selectivity due to its highly ordered nanostructure and excellent framework stability. The unique confinement effect creates a stable and powerful internal electric field within zeolite pores, significantly altering the adsorption behavior of reactants and intermediates, such as changing reaction pathways, reducing activation barriers, and finally improving catalytic activity and selectivity. Confining metal species within zeolites to form metal-in-zeolite (MZ) catalyst allows for microscopic control of the metal species, including distribution, coordination state and electronic properties. The unique physicochemical properties of zeolite make it perfectly suitable for the recognized disadvantages of traditional carbon carriers in electrocatalysis. Meanwhile, recent advances in synthesis and characterization techniques of zeolite have spurred research on MZ catalysts in the field of electrocatalysis. This review systematically summarizes the latest research progress of MZ catalysts in electrocatalysis (e.g. O₂/CO₂/CO reduction), with focus on the synthesis and characterization methods, structural characteristics and confinement mechanisms of different MZ catalyst systems. Finally, we provide an outlook on the application prospects of MZ catalysts in emerging electrocatalysis and heterogeneous systems.</p> Graphical Abstract <p></p>