A series of steady tensile test, transient tensile test and creep test of 00Cr17Ni14Mo2 stainless steel were carried out at different high temperatures using high temperature furnace, and the elastic modulus, yielding strength, ultimate strength, ultimate strain, elongation and creep strain of the material at different high temperatures were obtained. Based on the experimental results, the curves of the relationships between each mechanical property(elastic modulus, yielding strength, ultimate strength, ultimate strain, elongation) of the material and temperature and creep curve of the material were fitted by MATLAB software. It is seen that at higher temperature(600℃) the short period creep strain of 00Cr17Ni14Mo2 stainless steel is so evident that the effect of it on steel structural response is necessary to be considered for fire resistance computation of steel structure while the stress level is at 02fu(fu is ultimate strength at room temperature). It is also shown that the fitting equations for relationships between each mechanical property of 00Cr17Ni14Mo2 stainless steel and temperature are all identical with the experimental results.