The invention belongs to the technical field of shape data measurement, and discloses a shape measurement data correction method. The method comprises steps: the distance l[k] between each measurement area covered by a to-be-measured strip and the measurement central point of a strip measurement device is acquired; according to a formula as described in the specifications, correction data epsilon[k] for shape strain can be obtained, wherein the alpha is a correction factor and is selected according to a correction degree, k is the number of measurement areas covered by the strip, and l is the distance between the first measurement area and the measurement central point of the strip measurement device. The invention discloses a shape data method, and influences on a distribution trend by the existing local correction are overcome.