A mesh integrated seat pad assembly delivers vibration output from a massage module to the entire seat pad to prevent the vibration from being reduced by the pad. The mesh integrated seat pad assembly includes a pad provided in a seatback supporting the back of a passenger or a seat cushion supporting the hip and the thigh of the passenger to provide additional comfort to the passenger, a mesh mounted on one side surface of the pad, and a massage module installed to be in contact with the mesh.