The invention discloses a multiple-parameter monitoring system used for an electric welding machine. The multiple-parameter monitoring system used for the electric welding machine comprises a lifting support, a lifting drive mechanism, a walking mechanism, a walking drive mechanism, an electromagnetic control switch, a welding speed calculating system based on welding depth estimating, a timing circuit for conducting statistics of weld time, a weld length calculating module, a temperature detecting unit, a first data storage unit, a deformation quantity calculating module, a first parameter input unit and a controller which controls walking speed of the walking mechanism, lifting height of the lifting support and on-off state of the electromagnetic control switch according to data detected by the welding speed calculating system, the deformation quantity calculating module and the weld length calculating module. The multiple-parameter monitoring system used for the electric welding machine has the advantages of being reasonable in design, easy and convenient to operate, good in use effect, capable of conducting motoring on parameters of welding depth, weld length, welding position deformation quantity of welding material and the like, and capable of solving problems existing in the existing welding process that welding quality is difficult to control, welding efficiency is low, product percent of pass is low and the like.