To keep up with the increasing complex information environment and build the information system speedily and effectively, development of information systems based on the component technology was discussed from the component model and the component assembling. The traditional component model was improved. The new dynamic configurable component was suggested. New components can describe the environment explicitly and assemble itself structure and function dynamically through a built-in dynamic assembling logic. The appropriate component assembling model was given. The assembling procedures of components were also elaborated.