A contractible low-frequency electrotherapy apparatus comprises a flexible carrying member and an electric stimulation member. The flexible carrying member includes a sleeving member having at least one flexible serpentine region with at least one extension unit. Each extension unit has two extension segments symmetric to each other and a bendable segment connected with the two extension segments and deformed by external force. The electric stimulation member includes a pulse generation unit, a pulse transmission conductor electrically connected with the pulse generation unit, and an electrode member electrically connected with the pulse transmission conductor. The pulse transmission conductor has at least one electric conduction unit embedded inside the extension unit of the flexible serpentine region. Each electric conduction unit has two connection segments corresponding to the extension segments and a reversal segment corresponding to the bendable segment.
