The utility model discloses a portable slurry stirring device for drilling. The hydraulic control system comprises a multi-way reversing valve (1) connected with a drilling machine hydraulic oil pump,wherein the oil pipe connector (2) is arranged on the multi-way reversing valve (1), the high-pressure oil inlet pipe (3) and the high-pressure oil outlet pipe (4) are connected with the oil pipe connector (2), one end of the hydraulic motor (5) is connected with the high-pressure oil inlet pipe (3) and the high-pressure oil outlet pipe (4), and one end of the transmission shaft (7) is connectedwith the hydraulic motor. The drilling machine has the advantages that a hydraulic system of the drilling machine is used as a power source, independent electric drive is not needed, wires or generators do not need to be erected, material cost and environmental pollution are reduced, and potential safety hazards of electric leakage do not exist; a motor and a hydraulic pump do not need to be independently arranged, matched equipment is few, the size is small, portability is achieved, carrying is easy, and the construction efficiency can be effectively improved.