The invention discloses a multifunctional terminal electric appliance, which comprises a breaker and an intelligent control device, wherein the breaker comprises a hand shank and a first tripping drive mechanism; when a short-circuit current appears in the breaker, an electromagnetic release of the first tripping drive mechanism drives the breaker to achieve opening; the intelligent control device comprises a control assembly, a display screen and a second tripping drive mechanism; the control assembly drives the second tripping drive mechanism to move to trigger the release, so that the breaker is opened to achieve protection for an overvoltage, an overcurrent, an undervoltage and the like of the breaker when a current exceeds a set value or a voltage value exceeds the set value or is lower than the set value; and the control assembly calculates the power consumption according to the obtained current value and voltage value, and displays the calculated power consumption on a display screen in real time. Therefore, the multifunctional terminal electric appliance disclosed by the invention provides overvoltage, overcurrent, undervoltage and short-circuit protections for a circuit, and also has the function of an ammeter.