With the rapid development of social productive forces, the laser marking machine of one-work location has been difficult to meet the needs of large-scale production. In order to save time of to load parts, We design the laser Marking of Two-work location. The laser marking machine of two-work location. has two-work locations, when a work location load parts, other a work location is marking at the same time. Two work location alternate work , So significantly reduces the production of auxiliary time, improve production efficiency and meet customer needs. This design has been widely used in the domestic machining industry now, marking areas of laser marking in the domestic industry is still first.