Abstract: Weld crack resistance tests were carried out to compare the weldability of titanic acid A102 welding electrode and titanium calcium A102 welding electrode.The results indicate that the crack resistance of the welds welded with the two electrodes is quite the same,the content of ferrite and oxygen in the welds is quite the same,and the content of silicon meets the requirements in GB standard,which suggest that the results of the crack resistance test are reliable and accurate.