To provide a repairing method for a road installation in a pavement capable of quickly and inexpensively repairing the installation such as a manhole and the peripheral paved road surface arranged on the pavement when sinking or being damaged by vibration and the secular degradation.

This repairing method for repairing the installation such as the manhole 11 and the peripheral paved road surface 12 arranged on the pavement comprises: a process for cutting the peripheral paved road surface 12 of the installation in a quadrangular shape or a circular shape; a process for crushing and removing a pavement material 14 of the cut paved road surface 12; a process for adjusting the height of the installation; and a process for forming a first resin concrete layer 18 by placing resin concrete on a roadbed 15, arranging a concrete plate 19 on the first resin concrete layer 18, forming a second resin concrete layer 20 by placing the resin concrete on the concrete plate 19 and forming a resin mortar layer 21 by placing resin mortar on the second concrete layer 20.