The use of clay walls on bamboo lathing less burdens on the environment, but it is necessary to confirm their properties in order to use this wall construction method more widely in safety. In this paper, fracture behaviors were observed, including full section sized specimen and element specimen which were loaded force. As a result of full section sized experiments, four types of behaviors as load-bearing elements could be found. As a result of element experiments, when all four types of elements bearing the load compare with one element, the initial stiffness improved, but the toughness decreased because of the delamination at the interface of layers were markedly happen.