The invention provides a capping construction method for a hollow pier. The capping construction method for the hollow pier comprises the following steps: prefabricating a capping cover plate; performing pier wall construction on the hollow pier and reinforcing the top of the hollow pier from chamfer reinforcement layout; when the strength of the concrete on the wall of the hollow pier reaches higher than 75%, hoisting the prefabricated capping cover plate; closing gaps of the prefabricated capping cover plate through mortar; performing concrete pouring construction on a tray and a cap, wherein the concrete pouring construction comprises binding the tray and pouring cap rebar and concrete; and finishing the capping construction of the hollow pier. The capping construction method for the hollow pier greatly reduces the construction period by prefabricating the cover plate, can perform capping directly when the wall strength of the hollow pier reaches higher than 75%; performs capping by means of the disposable prefabricated cover plate, does not need to set up a scaffold, eliminates the time for setting up and dismantling the scaffold, greatly reduces the working period, simultaneously saves the cost on the scaffold, saves a large amount of cost and is remarkable in economic benefit.