Novel double-motor serial-parallel automatic switching device

The invention relates to a novel double-motor serial-parallel automatic switching device, which comprises a motor main control valve bank, a motor serial-parallel switching valve bank, a motor I and a motor II, wherein the motor serial-parallel switching valve bank consists of a two-way plugging valve I, a two-way plugging valve II, a two-way plugging valve III, an electromagnetic reversing valve and a shuttle valve, and the motor main control valve bank comprises a reducing valve, a main reversing valve, a balance valve, a safety valve, a passive cable laying valve and an oil compensation retaining valve. The novel double-motor serial-parallel automatic switching device has a simple structure, is convenient to operate and control, is reliable to work, can save the cost, and has remarkable economic benefit.