To provide a dwelling environment for enhancing seismic performance by resisting seismic force as substitution of a bearing wall, while using as furniture, by arranging wooden house seismic reinforcing furniture meeting a column interval.

This wooden house seismic reinforcing furniture is arranged for reinforcing a wooden building for the seismic performance by changing into the beating wall by fastening a wood screw to a building column and a horizontal member so as to reach 40 mm or more at an interval within 150 mm by penetrating through receiving wood by using the receiving wood also serving as structural plywood and a core material of the furniture for a back board, a side surface and a top plate, by manufacturing the wooden house seismic reinforcing furniture meeting the column interval planned for arranging the furniture before installation.