The present invention provides an environmentally friendly, ecology-promoting, water-channel block. The present invention comprises: a lower block which, on its inside, has at least one vertical partition wall and is provided with a plurality of compartments opening upwards in such a way as to store a fixed amount of water or of earth and/or sand, and which is located in a pit sunk to a fixed depth in a construction floor surface; an upper block which is provided on the lower block, and which has a first and a second vertical block located vertically along both the left and the right sides, and in which an animal passageway is provided on the facing inner surfaces of the first and second vertical blocks; and a middle block which is located between the lower block and the upper block in such a way as to cover the compartments, and which is formed with a plurality of through-holes passing through it.
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