The utility model provides a support device in middle of cultchless oyster temporarily, its characterized in that: including upper and lower setting support temporarily basin and aqua storage tank, be filled with the sea water that contains bait in the aqua storage tank, the aqua storage tank is taken out the sea water to support the basin temporarily in through the water pump, still breeds the groove including lieing in a plurality of of supporting the basin temporarily, the lateral wall of breeding the groove be the enclosed construction and open -top sets up, the bottom of breeding the groove sets up and is used for and supports the communicating dictyosome of basin temporarily, dictyosome and the tank bottom portion interval setting of supporting the basin temporarily set up on the breed groove and are used for the circulating pipe in its maritime interior waters circulatory flow to aqua storage tank, the utility model discloses can make things convenient for ingesting of cultchless oyster to realize its quick growth, shortened growth cycle.