A construction method for constructing an ecology river is provided to prevent earth and sand from flowing in into a housing to prevent by forming a blocking plat higher than the floor of a river. A construction method for constructing an ecology river is composed of steps for manufacturing a housing(10) having a jaw higher than the floor of a river(1) with the concrete structure, installing an artificial living member(20) for fishes or aquatic living creatures, burying a part of a protruded board member at the state of a protruded board member of the housing is protruded to the top of a waterway with about 10~40%, consecutively constructing housings along a river after burying the housing having a blocking plate(11), covering the top of the housings with soil, and filling the housings with water.
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