Literature and archive data on distribution of flatfish eggs and larvae in the northern part of Pacific Ocean were generalized. Available data about more than 30 flatfish species inhabiting North America Pacific Ocean waters, the Bering Sea, the Pacific Ocean waters of Kamchatka and Northern Kuril Islands, the Seaof Okhotsk and the Sea of Japan, were used. Data about density of the distribution of the eggs and the larvae depending on depth and water temperature in the sites of sampling in different months are demonstrated.