An oil way system for conducting stepless adjusting control on a rock drill comprises the rock drill, a cone valve, a reversing valve, a second throttling valve, a sequence valve, a first throttling valve and an oil pump. The oil pump is an HD control pump. One end of a pilot oil way PK1 is connected with a pilot operating handle, and the other end of the pilot oil way PK1 is respectively connected with the reversing valve and a control oil way PK. One end of the control oil way PK is connected with the pilot oil way PK1 through the first throttling valve and also connected with the sequence valve through the second throttling valve, and the other end of the control oil way PK is connected with the control end of the oil pump. The reversing valve is connected with the control end of the cone valve and controls the cone valve to be opened and closed. An oil outlet of the cone valve is connected with an input oil way P of the impact end of the rock drill. According to the oil way system, the oil ways are simple, the number of hydraulic components is small, meanwhile, stepless adjusting control is carried out on the rock drill, the adaptability of the rock drill for the rock drilling environment is improved, working efficiency is improved, and meanwhile the risk of rock drilling clamping is reduced.