An electronic component handler includes an electronic component transporter transporting an electronic component in an arrangement state where a shuttle plate is arranged, the shuttle plate having a recess receiving the electronic component, a light source casting light, a light receiver receiving the light, a detector detecting presence/absence of the electronic component in the recess, and a negative pressure generator putting the recess under a negative pressure. The shuttle plate has a first flow path. The electronic component transporter has: a shuttle plate fastener having a second flow path communicated with the first flow path in the arrangement state and having the shuttle plate fixed thereto in the arrangement state, a transmission member sealing the second flow path and transmitting the light, and a driver driving the shuttle plate fastener. The negative pressure generator is coupled to the second flow path and sucks the electronic component in the recess.