Roughness contour measurement equipment

The invention provides roughness contour measurement equipment which comprises a rack, a stand column, a transverse mechanism and an air floatation guide rail. The upper part of the rack is a tabletop; the stand column is fixed to the table top, a sliding sleeve is installed outside the stand column, a first lead screw is longitudinally and rotationally arranged in the stand column, the lower endof the first lead screw is connected with a first motor, and the first lead screw is sleeved with a first nut which is fixedly connected with the sliding sleeve; the transverse mechanism is fixed to the sliding sleeve, a rotating shaft frame is arranged on the transverse mechanism, a rotating shaft is arranged on the rotating shaft frame, a first reading head is fixedly connected to the adjustingplate, a rotating support and a horizontal measuring rod are fixed to the rotating shaft, a fan-shaped grating ruler is arranged on the rotating support, the grating ruler right faces the reading head, and a probe is arranged