Data on species composition of ichthyoplankton of the coastal zone of western part of Peter the Great Bay of the Sea of Japan are generalized. Here eggs, larvae, and fry of 77 species of fish belonging to 25 families occur, which comprises 24.4% of the total number of species inhabiting Peter the Great Bay. Among the studied water areas, maximum species diversity (60 species) was recorded in ichthyoplankton of the eastern site of the sea biosphere reserve. Seasonal dynamics of species composition of ichthyoplankton of the coastal zone of the western part of Peter the Great Bay was traced: number of species reduced from 52 in May to two in October.