The invention discloses a multi-channel parallel near infrared spectrum imaging system. A multi-wavelength light emitting diode (LED) is applied to finishing emission of near-infrared light. An avalanche photodiode is used for detecting a weak optical signal, the simulating lock-in amplifier technology is used for achieving amplification of the signal, and a near infrared spectrum cerebral function imaging helmet disclosed in Chinese patent application CN200520002784.8 can be used for improving the partial unreasonable design of a self-adaptation head portion. The multi-channel parallel near infrared spectrum imaging system can achieve continuous rapid accurate detection and collection of cerebral blood oxygen signals, overcomes the defect of an existing functional near infrared system, and brings superiority of the near infrared spectrum imaging technology compared with other cerebral function imaging technologies into full play.