The invention provides a marching type and magnetic jacking reactor control rod drive mechanics, which comprises a rod position detector component, a coil component, a pressure shell component, a knuckle component, a driving rod component, a heatproof lagging component and the like. The whole mechanism is vertically mounted on a top cover of a reactor pressure vessel directly, wherein the pressure shell component consists of a hoisting connector, a travel sleeve and a hermetic case. The travel sleeve of the pressure shell component is an integral blind tube with a blocked upper end and the hermetic case is an integral structure composed of a tube socket of the driving mechanism on the top cover of the reactor pressure vessel, and the hermetic case. The knuckle component is composed of two identical knuckle teeth arranged side by side, the distance between the two knuckle teeth is equal to the teeth space of the driving rod component, and the two sides of the flute between the two knuckle teeth are of transitional circular arc shape. The invention greatly reduces the leakage possibility of the pressure shell of the reactor control rod drive mechanics, and greatly improves the wear resistance, the reliability and the service life of the reactor control rod drive mechanics.