Abstract: Interindividual variation in metabolic phenotype is ubiquitous at all stages of life, which has been the focus of an emerging research area. Although the phenomenon of individual’s metabolic phenotypic variability is omnipresent, there is no consensus on the repeatability of this variability. To reveal the individual variation and its repeatability in metabolic phenotype of fish, we investigated the resting metabolic rate (RMR) of Spinibarbus sinensis at different time scales (0, 5, 15, and 30 days). Our results showed that individual variation in RMR was relatively repeatable over short term (0 to 15 days; P<0.05), while the repeatability disappeared over longer time periods (30 days; P>0.05). The results indicated that inter-individual variation in metabolic phenotype of S. sinensis was relatively repeatable.