Abstract: A crossbow having a trigger device for retaining and releasing a crossbow string comprises a crossbow string holding arm, a trigger arm, and a locking lever, each being pivotally mounted between the sideplates of a trigger assembly housing. The trigger arm engages a portion of the holding arm in a cocked position for securingly holding the crossbow string, and is pivotable out of engagement with the holding arm, thereby releasing the bowstring for firing an attached arrow. The locking lever prevents trigger arm rotation in a locked position, and is rotatable therefrom to an unlocked position for arrow release. The holding arm is mounted in a trigger assembly housing adjacent to the locking lever, and selectively abuts the same, whereby rotation of the holding arm during a portion of the cocking operation, automatically and contemporaneously pivots the safety lever toward the locked position.