The invention discloses a fiber-optic head assembly production line for assembling a light-transmitting sheet, a mounting cap, a casing and a cylinder. The fiber-optic head assembly production line comprises a mounting cap feeding device, a light-transmitting sheet feeding device, a housing feeding device, a cylinder feeding device, a first dispensing device, a second dispensing device, a third dispensing device, a first solidification device, a second solidification device, a third solidification device, a first displacement device, a second displacement device, a third displacement device, aturn-over device and a discharging device. The mounting cap feeding device, the light-transmitting sheet feeding device, the housing feeding device and the cylinder feeding device are respectively used for conveying the mounting cap, the light-transmitting sheet, the casing and the cylinder. Through the above structure, the automated assembly of the fiber-optic head can be completed, the production efficiency can be improved, the components can be accurately aligned, the glue can be accurately applied, and the assembly precision and the finished product quality can be improved.