PROBLEM TO BE SOLVED: To provide a seedling collector capable of collecting efficiently seedlings for a single seed oyster culture.SOLUTION: A seedling collector 1 formed by superposing two plates 2 each having many openings 3 and a hollow formed on one surface, in the state where each hollowed surface is superposed, and a mesh sheet 5 is sandwiched between both plates, and by fixing the two plates 2 with proper fixing means, is drooped in the sea where oyster larva is floating, to thereby allow the oyster larva to adhere onto an internal surface of the seedling collector.SELECTED DRAWING: Figure 2