Abstract: Combined with the working principle of the high-frequency reciprocating rig (HFRR) which was used for evaluating the lubricity of diesel, the technical indexes including temperature, length of stroke, frequency, time and performance of the testing machine were selected to reflect the stability and accuracy of the equipment. The contents and methods of intermediate check of the equipment were described and illustrated, the check results were analyzed and evaluated, and the attentions during the intermediate check were also introduced, to guarantee the accuracy of the equipment in the metrological verification periodicity.