B2B指(zhi)的是Business to Business，as in businesses doing business with other businesses，商(shang)(shang)家(jia)(jia)（泛指(zhi)企(qi)業(ye)）對商(shang)(shang)家(jia)(jia)的電子商(shang)(shang)務(wu)，即企(qi)業(ye)與(yu)企(qi)業(ye)之間(jian)通(tong)(tong)過(guo)互聯網(wang)進(jin)行(xing)(xing)產品、服務(wu)及(ji)信息的交換。通(tong)(tong)俗的說法(fa)是指(zhi)進(jin)行(xing)(xing)電子商(shang)(shang)務(wu)交易的供需(xu)雙(shuang)方(fang)都是商(shang)(shang)家(jia)(jia)（或企(qi)業(ye)、公司），她（他）們使用(yong)了Internet的技(ji)術或各種(zhong)商(shang)(shang)務(wu)網(wang)絡平臺，完成商(shang)(shang)務(wu)交易的過(guo)程。B2B是企(qi)業(ye)與(yu)企(qi)業(ye)之間(jian)通(tong)(tong)過(guo)互聯網(wang)進(jin)行(xing)(xing)產品、服務(wu)及(ji)信息的交換。