In the field of geotechnical engineering, accurate cognition of rock mass properties and quantitative description are the basis to ensure the safety, rationality and efficiency of construction. The traditional indoor rock mechanics test is difficult to fully reflect the macro characteristics and engineering classification of jointed rock mass, while the response information of drilling tools in the process of on-site geological drilling can comprehensively reflect the rock mass properties, so drilling operation is regarded as an in-situ test method. However, the drilling rate is affected by the complex correlation of drilling pressure, torque, bit rotation speed and other parameters, and the existing research on its internal function relationship still needs to be deepened. Relying on the digital drilling monitoring system independently developed, this study carried out orthogonal test of homogeneous material drilling for M10 mortar test block cast in situ. Through 42 groups of test data, the response laws of drilling pressure (F), bit rotation speed (N), drilling rate (V) and drilling torque (M) were systematically analyzed. It is found that there is a good functional relationship between the parameters. By revealing the quantitative correlation between the drilling parameters, it provides a theoretical basis for the parameter optimization of intelligent drilling technology and in-situ evaluation of rock mass properties. The relevant analysis ideas can be extended to transparent rock test data processing and complex rock mass engineering scenarios.