To provide a teaching method of a transfer machine hand of an unmanned carrier capable of teaching a precise transfer position for a placing stand of the transfer machine hand in a short period of time without depending upon a human sense.

A position detection sensor 4 for X, Z axes, a position detection sensor 5 for a Y axis and position detection sensors 7a, 7b for a θ axis are arranged on a sensor stand 9 installed on the transfer machine hand free to connect and disconnect to and from it, and a target 6 for the X, Y, Z axes and a target 8a for the θ axis are arranged on a target stand 10 installed on the side of the placing stand. The transfer position is taught by detecting the target 6 by the position detection sensors 4, 5, and a θ axis position is taught by detecting the targets 8a, 8b for the θ axis by the position detection sensors 7a, 7b for the θ axis.