A cageway connecting device and connecting method thereof is invented, the device includes a connecting cageway, an upper cannula, a lower cannula, two first steel angles, a fixed block, a pin boss and a fixed pin. The connecting cageway is set between the upper cageway and the lower cageway. The upper cannula is fixed in the connecting cageway. The lower cannula is fixed in the connecting cageway. The two first steel angles are fixed on the connecting cageway. The fixed block is fixed on the upper cannula. The pin boss is fixed on the lower cageway. The fixed pin is passed through the first pin bore and inserted into the second pin bore. The invention improve the accuracy of the initial installation of the cageway and facilitate the replacement of the cageway. The first cageway beam is determined and controllable.