An object of the present invention is to provide an excavation surface hardness analysis device and an excavation surface hardness analysis method capable of analyzing the hardness of an excavation surface. An excavated surface hardness analyzing apparatus 1 of the present embodiment is provided with a traveling body W, a boom B attached to the traveling body W so as to be able to turn in the left-right direction and to be vertically elevated, and a boom. A current sensor 2 for detecting a current flowing through a motor M for driving a cutter head C in a free-section excavator E for excavating a face F in a tunnel by having a cutter head C rotatably attached to a tip of B; The coordinate detection unit 3 that detects the coordinates with respect to the origin with the excavation start point of the cutter head C as an origin, and the current detected by the current sensor 2 when the cutter head C excavates the face F and the coordinates detected by the coordinate detection unit 3. And an analysis unit 4 that obtains the hardness distribution of the excavated surface based on. [Selection diagram] Figure 1
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