The invention discloses a spin-coating device for an encrypted optical disc production line. The spin-coating device comprises a base, wherein four groove bases for putting optical discs are arranged on the base; each groove base is separately connected to a motor through a shaft coupler; a glue collecting hole is formed in each of the inner side wall of each groove base and the upper end of each groove base; a partition is arranged at the outer side of each groove base; each partition is higher than each groove base; a plurality of glue holes are formed in each partition higher than each groove base; two glue collecting barrels are arranged below each groove base; a fixing block is arranged at the upper end of each glue collecting barrel; a fixing plate is arranged on a position, which corresponds to each fixing block, of the base; and the glue collecting barrels enter the fixing plates for being fixed in a manner of sliding into the fixing blocks. The spin-coating device is simple in structure, is reasonable and novel in design, is convenient to operate and effectively realizes uniform glue coating; and moreover, residual glue further can be recycled.