The invention provides a conversion method for a material performance standard value and a resistance design value. The method comprises the steps of determining a reliability index function beta by defining a resistance safety coefficient K; then calculating and selecting a resistance safety coefficient corresponding to a target reliability index; and finally determining the resistance design value. According to the method, the conversion between the material performance standard value and the resistance design value is realized, so that the reliability design of a structural member is more simplified; and the method is reliable and wide in application range.