A pin adjuster for electronic components adjusts and fixes pins of an electronic component while the electronic component is being installed on a circuit board such that the pins correspond in position to and connect to a plurality of contacts on the circuit board, respectively. The pin adjuster includes an insulating body and a plurality of channels. The channels each penetrate the insulating body and have an entry end and an exit end. The entry ends correspond in position to the pins of the electronic component, respectively, and the exit ends correspond in position to the contacts, respectively, such that the pins are adjusted and fixed in place by penetrating the channels, respectively. The pin adjuster enables the pins to be aligned with and connected to the contacts rapidly and precisely, thereby shortening the time taken to mount the electronic component on the circuit board and streamlining manual operation.