Abstract: In order to improve the reliability and behavior indexes of turbine genernor and to satisfy the automatic level of power station and people's aesthetic re quirements,research of some problems was performed,including measuring frequenc y of turbine PLC governor,humanmachine interface,sampling period,communication ,failure treatment,parameters setting,electric power supply,etc..The conceptions of static measuring frequency and dynamic measuring frequency are proposed,their calculation formulas are given,and the traditional external measuring frequency is changed into internal one.The advanced,beautiful Chineseshowtoucher is a dopted for humanmachine interface of turbine governor with the standard serial port RS232 or RS485.Through software coding,and adopting applied functions of c onstant scanning,several problems such as unequal sampling periods of PLC govern or,etc.,are solved.The study results have been verified in the practical enginee rings.This scheme may be chosen for design.