With the aim of developing and indoor overwintering technique for Pearl oyster, Pinctada fucata martensii, the metabolic rates of young oysters (52.4-83.0 mm in shell length) were measured for 2 weeks at water temperatures of 8, 10, 12, and $14^{circ}C$. The filtration rate (FR) ranged 0 to $4.84;L;h^{-1}gDW^{-1}$ (mean, $0.02{pm}0.06 $ to $3.12{pm}1.45$), with significant changes observed over thme except for the case of a water temperature of $14^{circ}C$. Respiration rate (R) ranged from 0 to $2.370;mgO2;h^{-1}gDW^{-1}$ (mean, 0 to $1.77{pm}0.37$), with significant respiratory disorders observed at temperatures below $12^{circ}C$; in contrast, the rate increased on the $14^th$ day of the experiment in the case of a temperature of 14$^{circ}C$. No significant difference was observed among the different water temperatures in terms of excretion rate (E) or absorption efficiency (Abs.eff), except for a significant decrease in aerobic metabolism in the case of water temperature of $8^{circ}C$. The estimated scope for growth (SFG) ranged from -9.1 to $126.9;J;h^{-1}gDW^{-1}$ (mean. $-4.1{pm}2.6$ to $82.85{pm}42.6$). A significant energy Joss was found at $8^{circ}C$, with negative SFG observed throughout the experiment and a gradual energy decrease observed over time at water temperatures of $10^{circ}C$ and 120C. However. SFG remained positive throughout the experiment in the case of $14^{circ}C$. The estimated minimum energy requirement, assessed from energy expenditure, is $8.00-34.24;J;h^{-1}gDW^{-1}$ (mean, $17.67{pm}6.17$). In conclusion, the lowest temperature suitable for indoor overwintering is above $14^{circ}C$.