Abstract: The experiment focus on the high density implantation of the Amorphophallus Bulbifer seed pieces in four different sizes, weighed in 100g, 150g, 200g and 280g. The result showed that with 60 seedlings in the zone, the 150g samples gain the biggest expansion rate and the highest input& output ratio, namely 5.7and 3.6; and 36 seedlings in the size of 200g hit the top in 6.5and 3.8; as to the types of 100g and 280g, the two criterions are correspondily low.