Abstract : Taiwan Electronic Manufacturing Service (EMS) field , in recent years outside the IT industry moved after the mainland becomes the world main factory, the Taiwan EMS industry withered rapidly in the Taiwan part. But the new niche product company and the few diverse products R&D center actually could not find suitable Taiwan electronic manufacturing service field (EMS) in Taiwan, caused the Taiwan research and development center don¡¦t find the appropriate coordination manufacturer, in the meantime that Taiwan's research and development center moved or the extension development time and reduced the its competitive advantage . Therefore this research is focused on Taiwan Electronic Manufacturing Service industry (EMS) to look for to suit the industrial characteristic and the product which develops in Taiwan. In with is familiar with this profession by way of the experts advanced, after suits ¡§the Taiwan Electronic Manufacturing Service industry (EMS) industrial characteristic and the product¡¨ the questionnaire survey below, and proposes the view according to the findings. In suits Taiwan Electronic Manufacturing Service industry (EMS) the industrial characteristic, after the appraisal order of priority, the sorting result is (1) Niche Product industry, (2) the IC industrial agglomeration, (3) provides the research and development center production service, (4) and the photo-electricity industrial agglomeration, (5) and the emerging industrial agglomeration. In suits product of the Taiwan electron processing service industry don't after the appraisal after sorting, sorts(1) IC industrial Flip-Chip assembly, (2) research and development center production and supplier chain service, (3) Digital LCD TV assembly, (4) smart phone assembly, (5) IC industrial Flash-Memory card assembly (6) Defense industrial electronic product assembly, (7) IC industrial RAM of Module assembly ,(8) server Mother board assembly, (9) Wi-Max of handset assembly , (10) Pilot-Run service for R&D center, (11) photo-electricity industry the great size LCD panel production, (12) solar cell control panel, (13) Vo-IP of handset, (14) small size LCD panel pilot-run service (15) IC equipment control panel assembly , (16) base station of communication equipment assembly, (17) vehicle electronic product assembly. Each EMS should depend on various companies competitive advantage, and refers to the above findings, chooses the most appropriate profession and the product do not come to take the company direction. This strategy decision-making way first present situation of by the market, the customer and the external environment development penetrates questionnaire of analysis the market upstream and downstream to discover the external market opportunity also of to be possible to become pattern of the another kind of market strategy decision