The invention discloses an energy-saving and emission reducing method for raising abalone seedlings, which comprises the following steps of: (1) culturing algae; (2) raising the seedlings, namely adding concentrated solution of bdellovibrio swim body in the process of raising the seedlings, so that the concentration of a swim body in a water body at least reaches 10 pfu/mL finally, wherein bdellovibrio is Bdellovibrio sp. BDFM05 and was collected in the China Center for Type Culture Collection in 7th August, 2009 with the collection number of CCTCC NO: M 209172; (3) changing water, namely changing the water every 5 to 30 days after ovum laying, and adding the concentrated solution of bdellovibrio swim body immediately after water refreshing; and (4) harvesting. The bdellovibrio swim body has the strong effect of eliminating common bacteria in culture environment. The bdellovibrio swim body has no toxic or side effect on abalone, so the bdellovibrio swim body is suitable for large-scale factory cultivation of the abalone, and the culturing survival rate of the abalone can be improved.