To eliminate waste of battery power by stopping continuation of agitation operation at a set period and perform the agitation operation only at a time of need.

A control part 30 of a portable type electric sprayer 1 includes: an on-off valve interlock switch 31 that, in conjunction with an opening/closing operation of an on-off valve 21, switches between a first contact 31A in an open state of the on-off valve and a second contact 31B in a closed state of the on-off valve 21; and an agitation operation switch 32 that, when switching to the second contact 31B of the on-off valve interlock switch 31, continues the power supply to an electric pump 14 for a set period and performs the agitation operation by surplus water.