This article presents a comprehensive review of fault analysis and detection techniques in power systems using MATLAB/Simulink. It discusses the various types of faults that can occur in power systems, including short-circuit faults, overload faults, and insulation faults. The article also explores different fault detection methods, such as wavelet analysis, artificial neural networks, and fuzzy logic. MATLAB/Simulink examples are provided to illustrate the implementation of these techniques, including fault simulation, fault detection, and fault classification. The article concludes by highlighting the importance of fault analysis and detection in ensuring the reliability and stability of power systems.