The invention provides a modularized direction-changing nailed laminated wooden heat preservation structural board. A plurality of vertical transverse surface laminated boards are arranged on the
surface layer, located on one outside side, of a board body; a plurality of interlayer horizontal laminated boards are arranged from top to bottom on one side of the indoor direction of the vertical transverse surface laminated boards; a plurality of vertical longitudinal
surface layer boards are connected with interlayer horizontal layer boards; and the boards are filled with in-fill heat preservation core boards. According to the modularized direction-changing nailed laminated wooden heat preservation structural board, full factory fabrication is realized, full-automatic and intelligent production can be fully realized,
ecological environment is not damaged, the product rate is greatly improved, sound insulation and
thermal insulation integration is realized, internal holes are maximized, the board rigidity and strength are greatly improved, and the
shock resistance is improved, and material utilization amounts are reduced; the structure is simple, but the stress performance is good, themodularized direction-changing nailed laminated wooden heat preservation structural board has incomparable deformation and
recovery capacity, can be used as a heat preservation outer wall, and further can be used for heat preservation roofing; the cost is low, the construction is convenient, the installation efficiency is greatly improved; and in addition, after the building is completed, nails are hidden inside, aesthetics performance is achieved, and durability is obviously improved.