Background:The optical system controlling of Shanghai Deep Ultraviolet Free-Electron Laser (SDUV-FEL) is based on EPICS system framework.It contains hardware and software to realize the functions like optical path control

beam quality measurement and so on.Purpose:Some improvements are needed so as to facilitate the operation and the safety of the maintenance and repair.All parts of this system should be integrated to the EPICS framework.Methods:We have made following improvements:integration of Basler CCD to EPICS

new OPI

controlling system of stepper motor through serial network.Results:All basic functions of the CCD and motor control are realized

meanwhile

all the optical systems are under the control of EPICS

which meet the need for FEL experiments.Conclusions:This work will make further enhance simplicity and integration of the optical system

which will become more reliable

easily operated and maintained.