The invention discloses a temperature-pressure combined probe used for measuring an internal flow field of the turbine machinery, which comprises a probe rod, a temperature sensing portion and a pressure sensing portion, wherein the probe rod is used for being installed inside the turbine machinery and extends into a flow field to be measured; the temperature sensing portion comprises a flow guidesleeve connected with one end of the probe rod and a temperature sensing unit arranged inside an inner cavity of the flow guide sleeve, and the flow guide sleeve is provided with an air flow inlet hole which is used for guiding an air flow into the inner cavity of the flow guide sleeve and enabling the air flow to be contacted with the temperature sensing unit; the pressure sensing portion is arranged on the probe rod close to the temperature sensing portion and comprises three pressure measuring tubes used for respectively placing pressure measuring sensors, and the orifice direction of onepressure measuring tube is consistent with the orifice direction of the air flow inlet hole. According to the combined probe provided by the invention, the temperature sensing portion and the pressuresensing portion are enabled to be consistent in included angle with an air flow in the turbine machinery through the design that the orifice direction of one pressure measuring tube is consistent with the orifice direction of the air flow inlet hole, and the temperature measured by the temperature sensing portion is enabled to be greatly improved in accuracy.