The three-dimensional layered object manufacturing apparatus partially applies energy to the conductor powder, and melts or sinters and hardens the conductor powder to manufacture a three-dimensional layered object. The three-dimensional layered object manufacturing apparatus holds a conductor powder and holds a cured three-dimensional layered object, an energy applying unit that applies energy to the conductor powder held in the holding unit, and curing A probe that is arranged apart from the surface layer portion of the three-dimensional layered object and that detects the surface layer portion, and a probe moving mechanism that moves the probe relative to the surface layer portion. The probe includes an exciting coil that generates an eddy current in the surface layer portion, and a detection coil that detects a change in the magnetic field in the surface layer portion.
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