Abstract: The rapid urbanization has led to the discharge and generation of large amounts of organicsolid waste, such as sewage sludge (SS) and food waste (FW). The introduction of a microbial elec⁃trolysis cell ( MEC ) into the anaerobic digestion ( AD ) process can realize efficient methaneconversion. In this study, the effects of intermittent power-on and electrode inversion on the MECContinuous stirred tank reactor (CSTR) were investigated. The results showed that the MEC-CSTR op⁃erated well under an applied voltage of 1.2 V and sludge retention time (SRT) of 15 d, with a methaneyield of (741.9 ± 99.2) mL/ L- reactor/ d. A short power outage period (2 d) did not adversely affectthe performance of the system, whereas power outage of 7 d decreased the organic hydrolysis effect andmethane yield of the reactor. Furthermore, successive electrode switching induced a decrease in themethane yield ((541.7 ± 32.0) mL/ L-reactor/ d). However, neither the power outage nor the elec⁃trode inversion caused a significant effect on the physical and chemical properties of the digestate or thehydrolysis of organic matter. This study can provide a new solution for MEC system to enhance the opti⁃mal implementation of SS and FW scale disposal and anaerobic energization project.