The invention discloses an engine airtight detection rapid plugging head, comprising a cam handle, a cam, a pull rod, an upper gasket, a rubber sleeve, a lower gasket and a nut; wherein the pull rod is sheathed with the upper gasket and the rubber sleeve, the upper gasket is arranged above the rubber sleeve, the bottom of the rubber sleeve is adhered with the lower gasket, the lower gasket is limited by the nut sheathed on the pull rod; the cam is arranged above the upper gasket, the cam is arranged at the bottom of the cam handle, and the cam is hinged with the upper end of the pull rod. The invention can effectively reduce mounting time of plugging head, plugging efficiency is improved, the semidiameter of the cam handle rotating downward is small, the plugging head can be used in narrow space, and the plugging head has the characteristics of simple structure, easy and rapid operation and wide application range.