In order to apply the microbial-phytoremediation for the treatment of saline soil contaminated by polycyclic aromatic hydrocarbons (PAHs), the PAHs-specific degrading bacteria were studied in this paper. Phenanthrene and pyrene were used as carbon and energy sources, and one dominant strain (B-1) producing 1-aminocyclopropane-1-carboxylate (ACC) deaminase was isolated by enrichment culture from the PAHs-contaminated soil at Dagang Oilfield. The morphology and 16S rRNA gene sequencing analysis revealed that this strain belonged to Planococcus sp., and it could produce indol-3-ylacetic acid and dissolve phosphates. With phenanthrene and pyrene concentrations both at 50 mg·L^-1, pH at 8.0 and salinity at 2%, their 7-day rates of degradation by strain B-1 were 66.6% and 52.0%, respectively. These percentages were significantly increased to 94.2% and 78.8% when alkyl polyglycoside was added into the system.