According to the characteristics of the electronic products of communication supply chain, six risk factors which own high probability through the operation of supply chain system were put forward in this paper. For the core production plan order as driving force to the supplier of the brand operation business in the supply chain, establish a Petri net model of electronic products of communication supply chain with the well dynamic realizability. By setting simulation parameters flexibly, the states and changes during supply chain operation were obtained and risk predictions were made. The simulation results could provide support basis for the subsequent decision-making strategy.