The invention relates to a moulded case circuit breaker earth leakage release, in particular to a moulded case circuit breaker earth leakage release reset and releasing indicating device. According to the following technical scheme, the device is characterized in that when a movable iron core is not sucked, a transmission hook is in the reset state under the action of a reset compressed spring, at the moment, one end of a limit shaft is placed on a high positioning face of a control arc face, a button is in the downward pressing state, when the movable iron core is sucked, the transmission hook acts against the elastic force of the reset pressing spring under the action of the suction force of coils to be in the releasing state, at the moment, one end of the limit shaft is plated on the low positioning face of the control arc face, and the button is in the upspring state. By means of the scheme, the moulded case circuit breaker earth leakage release reset and releasing indicating device overcomes the defects existing in the prior art and is reliable and economical.