To provide a shear reinforcing member being capable of making a size smaller than normal cleat and splice plate because the shear reinforcing member has an excellent mechanical strength, having an excellent portability because of a weight lighter than a steel plate while also reducing the damage of an appearance, being capable of being easily cut by a saw and a chain saw in the case of the overhaul of a building while facilitating the reuse and recycle of members and having superior re-usability and recycling property, being capable of preventing a looseness generated owing to a drilling working expecting an error on a working because the shear reinforcing member can be drilled integrally with a structure member at a construction site and obtaining the joint structure having a high rigidity, preventing the generation of a dew condensation and also having even a fire resistance and a decay resistance and being capable of effectively utilizing a bamboo material left as it is under the state in which there is no effective industrial using method as a material.

The shear reinforcing member has a consolidated body compression molded in the orthogonal direction to the fibrous direction of bamboo pieces or bamboo fibers by heating one bamboo piece or a plurality of the bamboo pieces or the bamboo fibers with an adhesive.