A method for measuring ground contact properties of a rolling tire, comprising the steps of: rotating a rotating drum capable of being rotatably driven and a tire together, the rotating drum having embedded therein a measurement unit capable of measuring ground contact pressure, width direction shear stress, and circumferential shear stress of the tire, the tire being contacted against the rotating drum so that the tire is a target of measurement; setting a measurement range having a predetermined angle range in the circumferential direction on the tread surface of the tire; contacting the measurement unit to a plurality of locations in a tire circumferential direction on a tread surface of the tire, the locations passing over the measurement unit; measuring the ground contact pressure, the width direction shear stress, and the circumferential shear stress of the tire at the locations only when the measurement unit is in contact with the measurement range of the tire and not when the measurement unit is in contact with a range in the circumferential direction on the tread surface of the tire which is outside the measurement range; identifying a position in the tire circumferential direction of each measurement point from a rotational position of the measurement unit detected by a measurement unit side rotational position detection unit and a rotational position of the tire detected by a tire side rotational position detection unit; and obtaining a ground contact pressure distribution, a width direction shear stress distribution, and a circumferential shear stress distribution in a contact region of the tire with the rotating drum by repeating the steps of measuring and identifying while relatively displacing the tire along an axis of rotation of the rotating drum. rotating a rotating drum capable of being rotatably driven and a tire together, the rotating drum having embedded therein a measurement unit capable of measuring ground contact pressure, width direction shear stress, and circumferential shear stress of the tire, the tire being contacted against the rotating drum so that the tire is a target of measurement; setting a measurement range having a predetermined angle range in the circumferential direction on the tread surface of the tire; contacting the measurement unit to a plurality of locations in a tire circumferential direction on a tread surface of the tire, the locations passing over the measurement unit; measuring the ground contact pressure, the width direction shear stress, and the circumferential shear stress of the tire at the locations only when the measurement unit is in contact with the measurement range of the tire and not when the measurement unit is in contact with a range in the circumferential direction on the tread surface of the tire which is outside the measurement range; identifying a position in the tire circumferential direction of each measurement point from a rotational position of the measurement unit detected by a measurement unit side rotational position detection unit and a rotational position of the tire detected by a tire side rotational position detection unit; and obtaining a ground contact pressure distribution, a width direction shear stress distribution, and a circumferential shear stress distribution in a contact region of the tire with the rotating drum by repeating the steps of measuring and identifying while relatively displacing the tire along an axis of rotation of the rotating drum.