The invention provides a through-type arch-bridge concrete bridge surface construction method, and belongs to the technical field of concrete bridge main-girder suspension-casting construction. The method includes the steps that 1, a support method is adopted to construct concrete arch-bridge main girders of a beginning segment and concrete arch-bridge main girders of a standard segment; 2, an arch-bridge main girder construction hanging basket and an affiliated system thereof are mounted, and the front end of the hanging basket is connected with a sling; 3, the cable force of a temporary pre-stressing tendon is adjusted; 4, longitudinal concrete beam steel bars are bound, and longitudinal-beam concrete casting is completed; 5, moulding plates are removed, the connection between the hanging basket and the sling is removed, and the arch-bridge main girder construction hanging basket walks to the next working position to conduct construction; 6, a cross-beam casting system is mounted, cross-beam concrete steel bars and the temporary pre-stressing tendon are bound, and cross-beam concrete casting is completed; 7, the steps 3-6 are repeated to continue to complete remaining bridge-surface concrete structure construction. The through-type arch-bridge concrete bridge surface construction method is convenient and rapid in construction and low in cost, the longitudinal-beam casting, the time for the cross-beam casting and the time for bridge surface plate laying are arranged reasonably, the construction arrangement is compact, and the working efficiency is high.