The BEPC will increase its luminosity ten times with upgrade of both the machine and detector,which is the project BEPCII,The project will be started at beginning chine and detector,which is the project BEPCII.The project will be started at beginning of 2002 and finished within 3-4 years.In order to reach the goal of the BEPCII,a number of new equipment will be added in the system,such as the superconducting RF cavities,new magnet power supplies and beam feedback system,and the BEPC control system has to be upgraded.The BEPC control system was built in 1987 and was upgraded in 1994.It is an Open VMS and CAMAC based-system,some equipment is controlled by PCs.We are going to upgrade the existing system by EPICS.Several VME IOCs will be added in the system with feildbus,PLCs for the new equipment control.And we will keep the existing system in use,such as CAMAC hardware ,PC based sub-control and application programs,which will be merged into the EPICS system.Recently the development of the EPICS prototype has been started.Regard some slow control,commercial SCADA product can be chosen as the development tool.We have just finished a prototype with the SCADA product Wizcon.This paper will describe the system design and development issues.
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