The two fibers are connected and no other auxiliary material is required. Disadvantages are that the equipment costs are too high, the equipment has limited power storage capacity, and field operations are. Fiber optic cold connection, also known as mechanical splicing, is a widely used method of connecting optical fibers in a network. In this. Optical fiber transmission has the advantages of wide transmission frequency, large communication capacity, low loss, no electromagnetic interference, small diameter of optical cable, light weight, rich source of raw materials, etc., so it is becoming a new transmission medium. With the optical fiber cold splices will play an irreplaceable role in FTTH access.