The invention relates to an architectural section and a manufacture method thereof, in particular to a double energy-saving insulating architectural section with a vacuum liner and the manufacture method thereof for solving the problems that the prior architectural section has poor energy-saving effect and single energy-saving efficacy. The architectural section is formed by mounting the vacuum liner in a hollow cavity comprising vertical concrete plates, a first concrete plate and a second concrete plate. The manufacture method comprises the following steps: (1) laying a bottom layer of rice hull concrete mortar on a section-constructing die, laying first connection ribs on the bottom layer of rice hull concrete mortar and laying an upper layer of rice hull concrete mortar on the first connection ribs; (2) arranging the vacuum liner on the upper layer of rice hull concrete mortar; (3) arranging vertical connection ribs on the periphery of the vacuum liner and filling with a middle layer of rice hull concrete mortar; (4) repeating the step (1) on the upper surface of the vacuum liner; and (5) leveling the upper surface of the second concrete plate to finish the manufacture of the double energy-saving insulating architectural section with the vacuum liner. The vacuum liner is arranged in the architectural section so that the invention has the double energy-saving efficacy.