The development of intra-product specialization and trade in a global economy has changed the international specialization pattern dramatically,and many developing countries took the opportunity to″embedin″the global″industrial chain″of advanced technologyindustry andits international competition . However,the traditional″total export statistical method″may over-evaluate the specialization status of developing countries in the new international specialization pattern,for this method does not consider the imported intermediate value of exported goods . This may lead to the so-called″statistical illusion″. By reviewing related research,and using a refined″non-competitive input-output model″,we developed a new instrument : the″added value-productivity index″. This index examines the international specialization status of a country's advanced technology industry,or the impetus of per unit exported advanced technology product on domesticeconomic growth and employment .This index prevents″statistical illusion″and facilitates transnational comparative analysis,revealing the true international specialization status of a country's advanced technology industry.