Abstract: Air samples were collected using high-volume sampler in Shenzhen city in the spring of 2001. Based on the concentrations and congener-specific distributions of polychlorinated biphenyls (PCBs)in gas and particle phase, the homologue profiles and gas-particle partitioning of PCBs were calculated and compared with similar studies in other countries. The results showed that the atmospheric level of PCBs was moderate during the sampling period. Concerning the phase distribution, the contribution of particle-phase of PCBs to the total atmospheric PCBs was much higher in Shenzhen than in other countries. The results of lg K_p vs lg P_L~0 showed that the phase distribution of atmospheric PCBs in Shenzhen was close to the state of equilibrium.