Shimia marina is a member of the family Rhodobacteraceae described in 2006. Strain CL-TA03(T) (=CECT 7688(T)) was isolated from a biofilm formed on an acrylic slide submerged in surface water in a coastal fish farm in Tongyeong, Korea. Here we report the draft genome sequence and annotation of S. marina CECT 7688(T) which is composed by 4,001,860bp arranged in 45 scaffolds with a G+C content of 57.4%, 3878 protein coding genes, 40 tRNA genes, 4 rRNA genes and 1 repeat region. An overview of annotated genes revealed diverse genes encoding for exopolysaccharide and capsular biosynthesis enzymes, secondary metabolite biosynthesis enzymes, multiple antibiotic and metal resistance and the ability for degrading aromatic compounds.