A compression device is provided which allows anyone to easily uniformly and thinly compress fibrin-gel without damage. A fibrin-gel compression device 1 includes: a first member 10 having a handle part 11 and a pressing convex part 12 and a second member 20 having a handle part 21 and an accommodating concave part 22 forming a shape corresponding to the pressing convex part. The first and second members are partially joined or rotatably supported to each other to variably adjust a separation distance d between the pressing convex part and the accommodating concave part to be able to accommodate and compress fibrin-gel 30 therebetween. Further, it is preferable that a shape difference is provided between the convex part 12 and the concave part 22 or a stopper member is provided on at least one of the handle parts 12, 21 to provide the separation distance d of 1 mm to 2 mm when compressing the fibrin-gel 30. Further, it is preferable that a nonslip surface formed of many pinholes 25 or the like is formed at a portion of the accommodating concave part 22, the pressing convex part 12, or the concave part and the convex part.
