Abstract: The present application provides a collapsible rotary electric cleaning brush, including a handle assembly, a drive assembly, a rotary assembly, and a cleaning brush head assembly. The handle assembly is connected to the drive assembly. A collapsible rotary assembly is provided at the lower part of the drive assembly. A detachable rotary cleaning brush head assembly is provided at the bottom of the rotary assembly. The beneficial effect of the present application is that: the automatic cleaning and the collapsible rotation function can be performed, the cleaning brush head can be offset with the cleaning area, and the cleaning can be performed automatically. The operation is simple and labor-saving. The present application is equipped with a variety of brush heads, which can be replaced according to different use scenarios and cleaning areas. The cleaning effect is the best, and the replacement is simple and convenient.