The GB/T 1043.1 - 2008 standard is used for non-instrumented impact testing in the determination of the impact performance of plastic simply supported beams. It specifies the test method in detail, covering sample preparation, test equipment requirements, impact operation process and result calculation. According to this standard, the performance data of plastics under non-instrumented Impact can be accurately obtained, providing a key reference for the application of plastic materials in impact-bearing scenarios, assisting product design and mass control, and helping to screen plastic materials suitable for different application scenarios.