By means of provision comparison and calculation, similarities and differences in ice load designed and its modification, wind load combined with icing, non-uniform ice load and wire broken conditions among different standards are analyzed. Results show that correction factor for conductor diameter in Chinese standards agrees with that of IEC standard, while the correction factor for conductor height is higher than that of IEC standard. As for the minimum wind speed rule, the wind speed combined with icing in Chinese standard agrees with that of IEC and CSA standards. Because of the differences in basic ice load and ice covering ratio, uneven ice load corresponding to a return period of 50 years in our standard agrees with that corresponding to a return period of 500 years in IEC standard, also reaches and is even higher than that in CSA standard corresponding to a return period of 150 years. The ice covering ratio of wire broken in our standard agrees with that in IEC and CSA standards corresponding to a return period of 500, 150 and 50 years respectively.