The invention relates to metering equipment, in particular to a roughness contourgraph. The roughness contourgraph comprises a base and a vertical column perpendicular to the base. A measuring deviceis connected to the vertical column in a sliding mode, and a working platform is connected to the base in a sliding mode. A guide groove is formed in the base, and a guide protrusion connected with the guide groove in a sliding mode is arranged on the working platform. The sliding precision can be effectively improved, the friction force during adjustment is reduced, the assembly is convenient, the overhaul and the maintenance are convenient, and the processing cost can be effectively saved while the high precision is ensured.