Three-phase motor voltage acquisition device, motor driving voltage detection system and vehicle

The embodiment of the invention discloses a three-phase motor voltage acquisition device, a motor driving voltage detection system and a vehicle. The three-phase motor voltage acquisition device comprises a three-phase motor voltage acquisition circuit. The three-phase motor voltage acquisition circuit comprises a first resistor, a first auxiliary resistor, a first acquisition point, a second resistor, a second auxiliary resistor, a second acquisition point, a third resistor, a third auxiliary resistor, a third acquisition point and a rectification circuit. The rectifying circuit outputs a first direct-current voltage, a second direct-current voltage and a third direct-current voltage. The first resistor, the second resistor and the third resistor play a role in voltage division, so that the voltage values of the first direct-current voltage, the second direct-current voltage and the third direct-current voltage can be far lower than the voltages of the first output end, the second output end and the third ou