This paper presents a intelligent management framework for cooperative logistics, which enables multiple shippers to share a few trucks, for improving the efficiency of the trucks' operations. It is necessary to reduce fossil fuel consumption and carbon dioxide emissions resulting from transport on account of environmental protection. Cooperative logistics has been one of the most effective and popular solutions to this problem, but it makes it be complicated to implement in a logistics management system. We propose a language for specifying the routes of trucks and an order relation between the requirements of routes and the possible routes of trucks. The former is formulated as process calculus and the latter selects suitable trucks according to their routes. Our language and selection mechanism were implemented as a web service.