The　method　for　applying　web　service　technology　to　implement　invocation　of　product　design　resources　based　on　the　inheritance　mechanism　of　remote　component　class　is　introduced,　the　detailed　account　of　operating　process　is　given,　a　prototype　system　is　developed,　and　the　speed　reducer　is　illustrated　to　validate　the　proposed　method.