To improve usability by enabling a rapid start, corresponding to the temperature change in a circumstance.

A current limiting control circuit 20 of an electric actuator is provided with a temperature detecting element 21 for detecting the ambient temperature; a comparing and instructing means 31 for comparing the ambient temperature detected by the temperature detecting element 21, with a predetermined reference temperature range to identify that the ambient temperature is outside the reference temperature range, and outputting an instruction signal; a circuit including resistances 28, 29 limiting a driving current supplied to the motor 4 and variable in the degree of limiting the current, and a relay contact 30; and a relay 27 for turning the relay contact 30 on and off to change the current limiting degree of the resistances 28, 29.