The Chaoshan Depression, where the Mesozoic strata well developed, is an important mothball area for gas and oil exploration in the oft-com:office:smarttags" />South China Sea. This paper analyzes the types and properties of the multiples, trying to suppress multiples using combination method with predictive deconvolution in τ-p domain, Surface Related Multiples Elimination (SRME) and Hyperbolic Radon transform. SRME method is used for suppressing surface-related multiples well, especially in the near-offset range; and hyperbolic radon transform is a good choice to attenuate long-period and surface-related multiples that are not sufficiently suppressed.