Abstract: As one of the key equipment units of the weld pipe plant, the conveyor supplies power for the operation line as a whole.The conveyer rollers drive the steel plate, and at the same time resist against the forward movement of the plate due to their elastic deformation.Mainly analyzed in the paper is the method for determining pressure of the conveyor rollers.Based on the quantitative analysis, optimization calculation of the said pressure is carried out.As a result, the minimum pressure imposed upon the conveyor roller as required for the operation is computed by means of the mathematic and computer programming methods.