The utility model discloses a fiber alignment device for PLC optical divider, it includes: the base, a side of base passes through dead lever and first optic fibre depression bar, second optic fibre depression bar, third optic fibre bar connection, all be equipped with notch type magnet on first optic fibre depression bar, second optic fibre depression bar, the third optic fibre depression bar, the position department that corresponds respectively with first optic fibre depression bar, second optic fibre depression bar, third optic fibre depression bar on the base top surface also is equipped with notch type magnet, the center department of base is equipped with the optical fiber positioning V groove, and the both sides limit in optical fiber positioning V groove is equipped with tilting optic fibre position control platform, the control of tilting optic fibre position control platform respectively optic fibre in the optical fiber positioning V groove. The utility model discloses an alignment device utilizes cold butt joint, realizes the pointolite and introduces, and the device's alignment precision is high, efficient, the loss is hanged down, convenient operation is simple.