The invention discloses a suppression pool. The suppression pool is mounted in a shell body of a safety shell and is annularly arranged around a reactor pit of the shell body. The suppression pool comprises a water space and an air space, wherein a plurality of anti-shaking partition boards are arranged in the water space; and communication holes for communicating two sides of the anti-shaking partition boards are formed in the bottoms of the anti-shaking partition boards. According to the suppression pool, the shaking of the liquid level can be prevented. The suppression pool is simple in structure and convenient to maintain. The invention further discloses the safety shell with the suppression pool.