Abstract: This article compares and analyzes the new and old standards for car seats and headrests, taking a passenger car seat and headrest as the analysis objects, in accordance with the new national mandatory standards and regulations issued by the State Administration of Market Supervision and Administration and the China National Standardization Administration Various experimental studies. According to the test results, the related influencing factors are analyzed,and corresponding improvement schemes are proposed. On this basis, the new schemes are tested and verified. With a view to providing reference for engineers in product design and analysis of test results.