The utility model relates to a cement concrete permeation coefficient testing arrangement permeates water, include overflow basin (7) and permeate water drum (5), permeate water drum (5) setting in overflow basin (7), be equipped with permeate water drum overflow mouth (6) on the drum that permeates water (5) top, be equipped with overflow basin overflow mouth (8) on overflow basin (7), permeate water drum overflow mouth (6) through I water pipe (3 1 )Collect clean system (2) with water and be connected, is overflow basin overflow mouth (8) through II water pipes (3 2 )Collect clean system (2) with water and be connected, the delivery port that clean system (2) were collected to water links to each other with water supply system (1), is the delivery port of water supply system (1) through III water pipes (3 3 )Be connected with the head (4) that supplies water, permeate water drum overflow mouth (6) and overflow basin overflow mouth (8) on all install digital display flowmeter (9) this cement concrete permeation coefficient testing arrangement permeates water and can not only simplify the process of the test, and can improve experimental precision and water economy resource.