【文章內容簡介】 In parison, the goods to consumers in this part is directly related to consumer evaluation of B2C emerce site, it seems more important. This paper studies the distribution pattern refers only to goods sent to the consumer from the site of the downstream distribution process.B2C emerce enterprises to adopt at this stage of the logistics and distribution model is essentially divided into three categories: builtin implementation services, that pany39。s own logistics management。 traditional distribution channels, that is, from manufacturers to send goods directly to customers。 thirdparty logistics (Third Party Logistics, 3PL) from a third party outside of the demand side of the supply part or all of the use of the supply side to demandside resources through the contract to provide logistics services, also known as outsourcing, contract logistics. of ebusiness logistics, information flow and cash flow starting to explore the relationship between the importance of logistics。 also has three elements and scholars from the future development trend of the starting expounded the necessity of establishing a modern logistics system. If Liang Yang jun (2003) considered that, due to consumers online ordering and selection of payment method, with the network bandwidth, network security technology improvement and the establishment of Internet banking, they (information flow and capital flow) achieved is no longer a B2C model of the main bottlenecks。 so the problem lies in delivery aspects, namely, logistics and distribution problems.Another scholar at the present stage of China39。s logistics and distribution problems in the development of technology, cost, management, and human resources were discussed, pointing out that the modernization of logistics long way to go. In recent years, with a number of B2C emerce businesses using thirdparty logistics, a lot of calls on the analysis or thirdparty logistics literature came into being. These documents analyzed, using thirdparty logistics panies to significantly reduce operating costs and the required inventory, consumers can also get faster and more highquality service, truly a capital flow, information flow, logistics, the unity, and therefore a a winwin choice. Of course, there are some scholars, such as ZHU Guan Yin (2003), referring to the independent operation of logistics and distribution agent is also involved in property ownership will lead to risk liability, costs cost, product quality, and dispute resolution aspects of legal issues.Three. B2C Distribution pattern analysisOn China39。s current situation of emerce development, due to a sound credit system has not been established, online shopping fraud cases, as well as newspapers and magazines a lot of negative reports on the frequent emerce businesses, enabling people are always skeptical about emerce, fear not on track to close to the quality of the goods or the goods do not conform with their expectations. With the largest proportion of online shopping book, for example, although the standardization of quality assessment to determine their likely than other modities, but there are also that they are not the same version, the wrong page missing pages, piracy and so on. Lack of credibility in the face of the current emerce of this constraint, in order to attract a higher degree of risk aversion of customers to join the ranks of online shopping which, B2C emerce businesses the only way out is to breach of contract to transfer risk to themselves, which is now Most of B2C emerce sites to provide consumers with a free or fee home delivery and cash on delivery service. This single hand cold numbercrunching approach despite. is minimal. Let us choose the way of emerce distribution constraints in decisionmaking assumptions as follows:Suppose one, with the spread of personal puters, access the network to continuously reduce costs, coupled with the increase in the number of emerce sites and services to improve, more and more people will be willing to try to use this form of shopping online trading activities . Thus, emerce businesses operating conditions of an area is constantly turn for the better。Assumption 2, if an emerce enterprises to provide home delivery services to an area and will be even greater extent to enhance the emerce businesses in the region, the volume of business。Assumption 3, the postal system can reach any place, regardless of the market prospects for its emerce businesse