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The elasticoluminescent materials are ceramics,which has the emission center in the crystalline structure.Each crystal particles emits the light when they are subjected to the load[1].We can see the stress distributions by observing the emitting light.On the other hand,the elasticoluminescent materials have the phosphorescence and the intensity of the emitting light is decreasing gradually.Then,the light emission from the elasticoluminescent materials should be complex phenomena when they are subjected to the load.Accordingly,it is difficult to obtain the absolute value of the stress by measuring the emitting light intensity from the elasticoluminescent materials subjected to the load.