Today the laser has been applied to all kinds of industries, mature industry chain distribution. Upstream mainly includes laser materials and supporting components, midstream mainly for a variety of lasers and their supporting equipment, downstream to laser application products, such as the medical industry, machining industry. Laser is the 20th century, following atomic energy, computers, semiconductors, another major invention of mankind, known as the "fastest knife", "the most accurate ruler", "the brightest light" and "strange laser". and "strange laser". It is about 10 billion times brighter than sunlight. The principle of the laser was discovered by the famous American physicist Albert Einstein as early as 1916, but it was not until 1960 that the laser was first successfully manufactured. Laser is in the background of theoretical preparation and production practice in urgent need of emergence, consumer products, instrumentation-based