Abstract: The municipal solid wastes (MSWs) were occasionally falsified for waste plastics in customs declarations, or through other illegal ways such as the concealed entrainment in waste plastics, to entered China. There was no inspection standards, procedures or guidelines of the MSWs found in China, and there was no inspecting methods of the MSW reported either. In order to better block the MSWs out of the country and combined with the inspection practices of MSWs that were falsified for waste plastics, the inspection method, process and conclusions of the MSWs falsified for waste plastics in customs declarations were systematically introduced. The characteristics of these kinds of MSWs were described and some revision suggestions provided.