This paper presents a novel architecture for trusted e-commerce cloud, which integrates trusted system and cloud computing technology together to solve the credibility and resources reuse problem of e-commerce. The key different between other e-commerce architectures and this proposed architecture is the introduction of trusted e-commerce infrastructure, which ensure the regulation of e-commerce market players, information and transactions. This paper discusses the basic rules for trusted e-commerce systems, which includes trusted e-commerce market player rules, information rules and transaction rules. The proposed architecture is described in this paper from user view, integration view, conceptual view and implementation view separately. The regulated and public services of this proposed architecture have great potential to govern e-market access, purify e-commerce market information, ensure e-commerce transactions, protect rights of e-commerce participants and improve the credibility of e-commerce players, information and transactions processes.