Optical fiber fusion splicer is a mini fiber splicing equipment which is compactly designed, easy to carry and operation. It has an exquisite image-forming system and high precision image processing technology on fiber alignment which leads to its high proficiency in splicing and low loss. Its beautiful operation interface and body design which conforms to operation principle of ergonomics greatly improve user experience. It is equipped with large capacity lithium battery which provides reliable guarantee for a long time field work. In summary, Removable plug large lithium battery capacity, providing a credible guarantee for field work for a long time. It is a totally automatic small, light and beautiful Optical fiber fusion splicer with high performance, high safety, low power consumption and can be easily operated.