Static synchronous compensator (STATCOM) is a regulating device used in AC transmission systems as a source or a sink of reactive power. The most widely utilization of the STATCOM is in enhancing the voltage stability of the transmission line. A voltage regulator is a FACTs device used to adjust the voltage disturbance by injecting a controllable voltage into the system. This paper implement Nruro-Fuzzy controller to control the STATCOM to improve the voltage profile of the power network. The STATCOM controller has simulated for some types of abnormal conditions. The simulation results show improves the system voltage profile. The performance of compensator with its new controller was very close to the nominal value, which was 98% of the busbar voltage.