The invention discloses a non-contact partial discharge ultrasonic sensor verification system and a test method. The verification system comprises a signal generator, a first biaxial displacement platform, a sound source, a cross laser device, a to-be-detected sensor, a reference sensor and a data acquisition unit, wherein a signal output end of the signal generator is connected with a signal input end of the sound source, the sound source and the cross laser device are fixedly arranged on the first biaxial displacement platform, signal output ends of the to-be-detected sensor and the reference sensor are respectively connected with a signal input end of the data acquisition unit, the receiving surface of the to-be-detected sensor and the reference sensor is arranged opposite to a sound outlet of the sound source, and the distance between the receiving surface of the to-be-detected sensor and the reference sensor and the sound outlet of the sound source is greater than 17cm. The verification system is advantaged in that calibration and positioning can be carried out. The test method is used for testing the verification system, and thereby verification accuracy can be improved.