The invention discloses a multipath data acquisition system, comprising a plurality of sensors, a plurality of amplifiers, multiple paths of analog switches, a sampling maintaining module, an A/D converter, a pre-processing unit, and an industrial personal computer; each sensor is connected to the corresponding amplifier; the amplifiers are connected to the multiple paths of analog switches; the multiple paths of analog switches are connected to the sampling maintaining module which is connected to the A/D converter; the A/D converter is connected to the pre-processing unit; and the pre-processing unit transmits data to the industrial personal computer. The multichannel synchronization data acquisition system can collect signals of various channels at the same moment and has high data collection efficiency. The arrangement of the sampling maintaining module guarantees that the digital signal converted through the A/D converter can accurately reflect the original simulation signal.