The invention discloses a surface resistance measurement device for an electrothermal strip production line, which comprises a bracket, two separated roller mechanisms above the bracket and a surface resistance display mechanism attaining a electrothermal strip resistance value between the two roller mechanisms; each roller mechanism comprises a lower roller fixedly connected with the bracket, a rolling ring sleeved on the lower roller, an upper roller located above the lower roller, a perpendicular guide pole located above the bracket and a height regulator that regulates the interval between the upper roller and the rolling ring, the electrothermal strips on the production line pass through the interval between the upper roller and the rolling ring in sequence. The inventive surface resistance measurement device for the electrothermal strip production line employs such a structure that, when the moving electrothermal strips on the production line pass through the two roller mechanisms in sequence, a resistance display instrument of the surface resistance display mechanism obtains the value, and the surface resistance is measured without shearing off the electrothermal strips on the electrothermal strip production line, thus improving the production efficiency and ensuring the stability of product quality.