We evaluated the behavioral response of Sebastes schlegelii (15.24 g±2.9 g) to three kinds of artificial shelters under different lighting conditions. Additionally, we evaluated the effect of rearing density (800 ind/m³, 1 200 ind/m³, and 1 600 ind/m³), artificial shelter type, and feeding frequency (1, 2, 3, or 4 mealsper day)on the growth, feed consumption, and behavior of juvenile S. schlegelii (0.50 g±0.02 g) in a 7-week net cage culture experiment. Juvenile S. schlegelii were attracted to all 3 artificial shelters types, but particularly to the shelters constructed of scallop cages (S1). The association of fish with the artificial shelters increased under dark conditions, but there was no significant difference (P>0.05) in their distribution compared to those held under natural light. As density increased, the final weight, daily weight growth rate (DWGR), and specific growth rate (SGR) all increased. For fish reared in the no shelter group, the DWGR and SGR of the low density group was significant lower than for the medium and high density groups (P<0.05). Additionally, the final weight was significant lower than in the high density group (P<0.05).The availability of artificial shelters was associated with a significant increase in the final weight in the low and medium density groups compared to the control groups (P<0.05). Additionally, there was a significant increase in the SGR and FCR in the high density group when shelters were provided (P<0.05). Stocking density and shelter type had a significant effect on the coefficient of variation for body weight (CV_BW) in juvenile S. schlegelii (P<0.05) whereby CV_BW increased with stocking density. The presence of shelters was associated with a lower CV_BW than in the absence of shelters. The difference was very significant between low and medium density groups (P<0.01), and significant between the medium and high density groups (P<0.05). For all rearing densities, a feeding frequency of once per day was associated with a higher CV_BW than for other feeding frequencies (P<0.05). There was no significant difference in CV_BW among the groups when the satiation feeding frequency was more than twice per day (P>0.05). Our results suggest that for juvenile S. schlegelii between 0.5 g and 5.8 g reared at a stocking density of 1 200 ind/m³, the CV_BW could be reduced significantly and better growth could be achieved by using artificial shelters in the cultivation environment with a feeding frequency of twice per day.