For almost the whole decade ending 1995, the Thai economy had been the fastest grow in the world which was seen as one of the most dramatic economic booms experienced anywhere in the post-war world, however, the economic growth was followed by a collapse at the end of the decade (Warr,2000). Thus, SMEs development in Thailand is perceived to be essential if the country want to progress from its present status of an emerging economy to the level of a recently industrialized economy and then join the ranks of the industrial nations.