Abstract-Despite the fact that there have been many researches done on mobile commerce abroad, there is much to explore and investigate in the case of Malaysia. The aim of this paper is to present findings on key determinats of mobile commerce usage in Malaysia. This study adopted quantitative approach and conducted survey among consumers Malaysia. This research shows that perceived ease of use, personal innovativeness, perceived trust, perceived cost, social influences and perceived usefulness are key determinants influencing consumers to adopt mobile-commerce. Keywords-mobile commerce; technology acceptance; Malaysia; behavioural intention;