The invention provides an intelligent unmanned assembly line for tea packaging, which belongs to the technical field of storage, and aims to solve the problems that an existing tea packaging, storingand sorting process wastes labor power, is low in sorting and storing efficiency and is great in occupied space. The intelligent unmanned assembly line for tea packaging comprises a stacking device, apallet device, a computer and a conveying assembly line, wherein the stacking device comprises a stacking robot, a conveying mechanism, a second control device and safety optical gratings, the multiple safety optical gratings define a working area; the pallet device is equipped with a baffle plate mechanism, a lifting mechanism and a first control device; the conveying assembly line is provided with a second-floor conveyor line, a slope conveyor line, a first-floor conveyor line, a box pusher, a box stacker, a first packaging machine, a first steering device, a first roller conveying device,a second packaging machine, a second roller conveying device, a second steering device, a box turnover machine, a third roller conveying device and a third packaging machine. The intelligent unmannedassembly line has the advantages of saving labor power, saving space, and improving sorting and storing efficiency.