The present invention relates to a model of rainfall runoff demonstration experiment watershed, wherein an actual terrain reduction model is disposed on one side, and a development terrain reduction model is disposed on the other side for a watershed construction model. According to the present invention, in the model of rainfall runoff demonstration experiment watershed, rainfall leaking to a lower portion of the terrain model by falling of artificial rainfall is collected to perform a demonstration experiment with respect to a leakage of the rainfall. Therefore, an actual terrain before development of the country and a change in a leakage amount of rainfall leaking in a predetermined time in the developed terrain are easily prepared and measured to prevent a disaster by the leakage of the rainfall of a development planned terrain in case of a development plan using the land in advance for a land using development plan to be easily established.;COPYRIGHT KIPO 2019
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