An electric oven having a heat-dissipation function, constituted primarily by a machine body (10), an electrothermal apparatus (20), a control apparatus (30), and a heat dissipation mechanism (40). The heat dissipation mechanism (40) comprises an air duct (41) and an exhaust fan (42). The air duct (41) is formed by a spacing of a machine body outer housing accommodating an inner housing and is provided with an air inlet (411) and an air outlet (412). The exhaust fan (42) is mounted within the air outlet (412). As such, heat dissipation by air circulation is allowed by operation of the exhaust fan (42).