To provide a single-plate glued laminated material of bamboo fibers which makes it possible to use a bamboo effectively and which is easy to form and strong sufficiently, and a composite glued laminated material which is a combination of the glued laminated material of bamboo fibers with thinnings.

A glue not containing a chemical substance detrimental to the human body is stuck to the bamboo fibers taken out from a bamboo and the fibers are put under heat and pressure to be laminated by the glue and are shaped like a plate. The bamboo fibers are explosively-fragmented ones obtained by explosive fragmentation wherein, heating vapor being sent into a closed space wherein the bamboo is placed, a prescribed pressure is applied thereto for a prescribed time and then reduced rapidly and wherein these application and reduction of the pressure are repeated to break down the texture of the bamboo and thereby to take out the fibers. The glued laminated material of the bamboo fibers and wood obtained by sawing the timber from thinnings, in the shape of a plate or a rod, are laminated and stuck together by the glue not containing the chemical substance detrimental to the human body, so as to be made the composite glued laminated material.