The depth of border ditch in Sinonovacula constricta culture ponds, which is closely related to the amount of food for S. constricta, is an important factor determining the water space of the pond as well as the S. constricta culture efficiency. However, there is a great blindness and habit-based orientation when most farmers set the depth of border ditch at present. In this research, a pond with an area of 8 hm2 was transformed into four same-sized ponds (2 hm2), with border ditches depths being respectively set at 0.5 m, 0.9 m, 1.3 m and 1.7 m and marked as pond S1, S2, S3 and S4. All four ponds were sowed with seedlings at a density of 4.3×105 grains per hm2 with an average body mass of 0.24 g, and fed independently for about 150 days. The results showed that the body mass of S. constricta by order was S3 (16.93 g), S2 (16.39 g), S4 (15.14 g), S1 (14.07 g), the survival rate was S2 (71.28%), S3 (68.80%), S1 (68.07%), S4 (61.55%), and the yield was S2 (5023.6kg / hm2), S3 (5008.8kg / hm2), S1 (4118.4kg / hm2), S4 (4007.2kg / hm2). The research suggested that the depth of furrow between borders affected the growth and survival of S. constricta mainly through affecting the feeding, the stability of borders and pond water quality. The culture effect of S. constricta was not ideal when the border ditch was too shallow or too deep. Setting the border ditch depth at 0.9-1.3 m could maintain a stable culture pond environment, normal feeding and growth, and lead to a higher yield and benefits.