In order to assess the effect of shell color selection of Pacific oyster () on feeding and respiration, two groups of the forth golden shell color line (G1, G2) and two groups of the normal culture group (C1, C2) were conducted in the experiment. Filtration rate (FR) and oxygen consumption rate (OCR) of 4 groups at different temperatures and salinities were observed. The results of feeding treatments showed that with the increase of temperature, FR began to rise reaching the maximum at 28℃, and then declined. C1 exhibited the maximum FR at salinity of 25 and other three groups exhibited the maximum FR at salinity of 30; Two-way ANOVA showed that temperature, group and salinity, group had a significant influence on FR of . Golden shell color line had significantly larger filtrate rate than the normal culture group ( < 0.05). The results of respiration treatments demonstrated that temperature, group and salinity, group had a significant effect on OCR of 4 groups ( < 0.05). The maximum OCR of G2 occurred at the temperature of 32℃, while other three groups occurred at the temperature of 28℃. OCR of G1 was significantly lower than C1, while OCR of G2 was significantly higher than C2 ( < 0.05). In the set salinity range, all groups exhibited the maximum OCR at salinity of 25; OCR of golden shell color line was significantly higher than the normal culture group ( < 0.05). Oyster of small size filter and consume oxygen more than oyster of large size. The present results indicated that selection for faster growth of golden color line might produce animals that had higher intake of energy by virtue of faster filtrating behavior, and a further selection could be likely meaningful.