The invention relates to the technical field of toy guns, and provides a semi-automatic toy gun with trigger linkage and boring bullet feed. The semi-automatic toy gun comprises a toy gun body, a boring bullet feed device, a bullet accelerating device and a magazine, wherein the boring bullet feed device is arranged in the toy gun body; the boring bullet feed device comprises a sliding bore, a bullet push unit and a trigger linkage and escapement unit which are arranged in the sliding bore; the bullet accelerating device comprises a fixed seat and at least one pair of accelerating flywheels; each pair of accelerating flywheels are distributed on the fixed seat in a horizontal direction; when a plurality of pairs of accelerating flywheels are arranged, each pair of accelerating flywheels are correspondingly arranged in sequence in the bullet running direction; and a bullet feed push rod faces the position, which is to be fired by a bullet, of the magazine, and the position, which is tobe fired by the bullet, of the magazine faces a bullet inlet of the bullet accelerating device. According to the semi-automatic toy gun, the energy and movement of pressing the trigger by fingers areused for feeding the bullet, a semi-automatic firing function is realized, the shooting touch is good, the bullet clamping rate is low, and the boring enjoyment is high.