Thearea of multilateral tradeextendedtoserviceaft ertheUruguay Roundnegotiation. WTO rules allow discriminate treatment against service or service suppliers fromdif erentmember countries based on Mostfavored-nation-Clause.Article 5 of GATS stipulates that a regional economic integration member could provide preferential treatment to another. Thus therule of origin(ROO)inservice trade is becoming research focus. CEPA bestow market access as wellas otherpolicyprivilegeon ‘Hong Kong Company'. Manyso-called ‘Hong Kong Companies'however are controlledby Europeanor American service suppliers，whoaretherealbenefi ciaries. This articlei saimingtotable several proposals for CEPA'swell performingby exposition of the international coordination in service trade ROO and the current implement of CEPA.