Fiber distribution box is used in outdoor, corridor or indoor that connecting main fiber optic cable with distribution cable port equipment. Particularly using in the fiber access network of the application of the fiber optic terminal point, which combined with optical fiber cementing, tray storage, and wiring; so that can be achieved through main cable and tray storage. It is adopting galvanized cold rolled steel and coating installed electrostatic surface spray technology which shows high safety performance. The door of box is arc designed which minimize the transmission loss of the optical fiber. The splicer is stacked structure that easier to operate, and can be use in the ribbon fiber welding.