Abstract: Multi-axial creep testing methods are generalized,and then the method of how to evaluate the creep life of high temperature components based on creep testing data is presented.Introduction is made to the commonly-used multi-axial creep testing methods of thin walled tube testing,circumferentially notched bar testing,circumferentially notched tube testing,component stimulating testing,perforated biaxial plate testing,cruciform biaxial plate testing and compact tension testing.Characteristics and applications of these testing methods are discussed.The multi-axial creep testing code of ESIS P10-02 for circumferentially notched bar is analyzed,and then the approach of how to predict the creep rupture life of high temperature components according to their representative stresses,skeletal point stresses and failure modes is presented.