To provide a floating ball type breakwater capable of simply preventing waves surging from the offing using innumerable number of connected floating balls instead of concrete.

In this floating ball type breakwater, although this floating ball type breakwater 2 attempts to float above waves when waves surging from the offing hit the floating ball type breakwater 2, this breakwater receives water resistance to delay floating-up of the floating ball type breakwater 2 because it is connected with a frying pan type iron plate 6 by a wire. For this reason, since difference occurs between speed of surging waves and speed of the floating ball type breakwater 2 attempting to float up, waves continue to hit before the floating ball type breakwater 2 floats up and the floating ball type breakwater 2 reducing size of waves is pushed by waves, but is pulled by a floating ball 1 with an anchor weight 7 and a floating ball 8 so that the floating ball type breakwater continues to receive waves at the same position.