The invention discloses a reinforced wood post internally provided with longitudinal steel bars and a manufacture method thereof. The invention relates to the field of wood structures, in particular to the manufacture method for reinforced wood posts internally provided with longitudinal steel bars in a wood structure house. The invention aims to solve the problems of a current wood post that bearing force is low, and the wood post cannot be applied to heavy-load construction easily. The reinforced wood post internally provided with the longitudinal steel bars comprises dovetail grooves, the internal longitudinal steel bars, end socket anchor plates, bent hooks, end sealing concrete and the wood post, wherein the dovetail grooves are formed in the outer surface of the wood post; the end socket anchor plates are arranged on two ends of the wood post; the outer side of each end socket anchor plate is provided with end sealing concrete; one end of each internal longitudinal steel bar is provided with a corresponding steel bar bent hook section; the other end of each internal longitudinal steel bar penetrates through the end socket anchor plates on the two ends of the wood post and is arranged in the corresponding dovetail groove; each dovetail groove is filled with epoxy glue; the other end of each internal longitudinal steel bar is welded to the corresponding bent hook; and each steel bar bent hook section and each bent hook are wrapped with the end sealing concrete. The reinforced wood post internally provided with the longitudinal steel bars is used for building of the wood structure house, and the wood post is used in heavy-load construction.