Abstract: In transition economies, firms have to change the previous organization and governance structure and rapidly and effectively respond to the market through market orientation. Therefore, Market Orientation (MO) has attracted much attention from scholars of marketing and strategic management, but little research has attempted to examine the validity and applicability of MO model and its scale in a transition economy and the developing countries with China in particular. Thus, the aim of this paper is to demonstrate the applicability of the market orientation scale (referred to as MKTOR) in transitional Chinese economy developed by Narver and Slater (1990) in western countries. This research collects 1415 enterprise’s data in seven provinces in China to analyze the reliability and validity of this scale using SPSS13.0 and LISREL8.7, the results show the Cronbach alpha, translation validity, construct validity (including convergent validity, discriminant validity) and criterion-related validity of MKTOR scale are acceptable in the Chinese context, which in turn indicates the scale developed in developed countries can be applicable and extended to the Chinese turbulent transitional economic country.