NOVELTY - Utilizing bamboo resource, involves (a) cutting down a parent bamboo tree which is passed four years after growing and coming out from ground in bamboo thicket every year, (b) cutting the cut-down tree into desired length suitable for natural drying process, where cutting is carried out in vertical division, (c) subjecting the obtained bamboo material to air drying, (d) pulverizing the dried bamboo material to obtain bamboo chip or bamboo grain, and (e) subjecting the bamboo chip to boiler for fuel generators which is installed in vicinity of bamboo thicket.    USE - The method (M1) is useful for utilizing bamboo resource as fuel for generating electric power. The method (M2) is useful for managing bamboo thicket for identifying age of bamboo (all claimed).    ADVANTAGE - The method enables visualization of cut down bamboo trees easily, and incineration of bamboo easily without pollution and hence it is safe.    DETAILED DESCRIPTION - Method (M1) of utilizing bamboo resource, involves (a) cutting down a parent bamboo tree which is passed four years after growing and coming out from ground in bamboo thicket every year, (b) cutting the cut-down tree into desired length suitable for natural drying process, where cutting is carried out in vertical division, (c) subjecting the obtained bamboo material to air drying, (d) pulverizing the dried bamboo material to obtain bamboo chip or bamboo grain, and (e) subjecting the bamboo chip to boiler for fuel generators which is installed in vicinity of bamboo thicket, where the waste heat generated in boiler is utilized for drying bamboo and bamboo ash remind after boiling process is restored to soil of bamboo thicket. INDEPENDENT CLAIMS are included for the following:    (1) method (M2) of managing bamboo thicket, involves attaching bamboo age identification unit to young bamboo (less than one year after growing) and observing falling of bamboo tree every year by visual observation; and    (2) bamboo identification unit comprising fastened band for winding around bamboo, or belt shaped material for attaching bamboo.