The invention relates to the technical field of exposure, in particular to an exposure device. The exposure device comprises a rack, an exposure chamber is arranged on the rack and comprises a worktable, and exposure mechanisms are arranged above and below the worktable correspondingly; a coarse positioning mechanism used for coarsely positioning materials is arranged on one side of the worktable,and a fine material mechanism used for finely positioning the materials is further arranged on the worktable; an exposure opening is formed in the middle of the worktable, and a first adjusting platform and a first adjusting mechanism are arranged on the worktable; and a second adjusting platform and a second adjusting mechanism are arranged on the first adjusting platform. The exposure device issimple in structure and reasonable in design, the precision of material exposure is improved, the pass rate of quality is increased, the working efficiency is high, the first adjusting platform and the second adjusting platform can realize individual adjustment and linkage adjustment, the exposure mechanism and the materials are subjected to precise film alignment conveniently, the precision is improved, and using is flexible and convenient.