The multi-
channel data acquisition 
system provided by the present invention includes an acquisition computer, an acquisition display and an acquisition end printer, the acquisition computer is equipped with a plurality of A / D acquisition cards and a buffer, and each A / D acquisition card input terminal is provided with a 
voltage  Isolation conditioner, the acquisition computer is connected to the control computer and the echo computer through the back end of the 
Ethernet, the control computer is installed with a dual-screen display card, and connected to the master and slave monitors and the control terminal printer respectively, and the echo computer is connected to the echo display  and the echo printer.  The invention also provides a method for multi-
channel data acquisition.  The invention has the advantages of being able to measure multiple channels, suitable for multi-
signal recording occasions, convenient display and printing of data and waveforms, high degree of 
automation and accuracy, and conducive to intelligent acquisition, especially suitable for 
rocket launching and weapon testing  , 
petrochemical and other dangerous and heavily polluted on-site 
signal detection and recording occasions.