Abstract: The purpose of this study is to study the influence of different types of thread reinforcement （wire thread insert and bolt steel sleeve） on the connection strength and connection performance of screws under vibration test conditions, and to compare the influence of two ways of reinforcing threads on the vibration resistance and connection stability of connection fasteners under vibration test conditions through quantitative analysis. The influence of quantitative analysis and numerical simulation on the stability and other properties of two kinds of reinforced threaded connections. The experimental results provide theoretical basis and reference for the study of mechanical design and connection scheme selection in vibration environment.