The invention discloses a fabricated type frame column joint connecting structure and a construction method thereof. Grooves are formed in the outer surfaces of building blocks, rebars are added into the concave grooves when the building blocks are piled up, through the bound effect of the rebars on the building blocks, anti-shearing and anti-seismic performance of the building body structure is improved, the problem that crevices of existing building blocks in a structure or a component develops untimely and the crevices are oversized is solved; meanwhile, the rebars can play a good positioning effect, so that piling-up of the building blocks is convenient, the construction can be accelerated effectively, purpose of shortening the construction period and saving cost is achieved.