An electronic device with a flexible assembly, comprising a housing, a positioning assembly and a flexible display, is provided. The housing comprises a first cover plate, a second cover plate and a flexible assembly. The flexible assembly is bendably connected to the first and second cover plates, so that the first cover plate closes on the second cover plate or opens to a limit angle with respect to the second cover plate and then stops. The positioning assembly is disposed on the housing for positioning the first cover plate, the flexible assembly and the second cover plate in an open state or a closed state. When the first cover plate opens to the limit angle with respect to the second cover plate, the positioning assembly prevents the first cover plate from rotating in a reverse direction with respect to the second cover plate.