The utility model discloses a multifunctional combined arch ring support which comprises foundation supports and accumulation supports. The foundation supports are different in span and arranged on the lower portion, the accumulation support is arranged on the upper portion, each foundation support comprises a cross beam, inclined struts and an arch beam, two ends of each arch beam are supported at two ends of the corresponding cross beam, and one ends of the inclined struts is connected with the corresponding arch beam while the other ends of the same are connected on the corresponding cross beam; each accumulation support comprises a circular-arc baseplate, inclined struts and an arch beam, each circular-arc baseplate is arranged on the lower portion, each arch beam is arranged on the upper portion of the corresponding circular-arc baseplate, each circular-arc baseplate and the corresponding arch beam are supported by the corresponding inclined struts, and requirements on different spans are met by combining the foundation supports and the accumulation supports. Requirements on arch culvert construction supports various in span are met by combining and additionally mounting, number of customized sets is reduced, cost is lowered relatively, construction period is shortened, convenience in transport is realized, and working efficiency and safety coefficient are improved.