A new framework for constructing distributed virtual environment (DVE) by utilizing online information resources has been proposed so that the DVEs can be utilized as a communication and thinking media for distant education, in which a teacher and students share the worlds of realism, abstract and symbol. Introduction of a new method to control causality of DVE simulation by adopting the protocol of parallel discrete event simulation has enabled to develop a base software MALIONET for the proposed DVE-based distant education system. Two example practices were conducted for constructing educational materials by using MALIONET, and they resulted in that the developed MALIONET has enough possibility to support construction of effective environment for distant education.