The invention relates to movable large melon and fruit harvesting, cleaning, grading and packaging equipment. The movable large melon and fruit harvesting, cleaning, grading and packaging equipment is characterized by being composed of a tractor-trailer, a net bag type hydraulic turnover harvesting and feeding device, a brush roll type pneumatic cleaning device, a material subchannel device, a 180-degree turning conveying belt, a detection device supporting structure, a turnover block type automatic grading device and boxing operation platform plates, wherein the net bag type hydraulic turnover harvesting and feeding device, the brush roll type pneumatic cleaning device, the material subchannel device, the 180-degree turning conveying belt, the detection device supporting structure, the turnover block type automatic grading device and the boxing operation platform plates are installed on a flat plate of the tractor-trailer through bolts. The boxing operation platform plates are installed at the two sides of the tractor-trailer through pin shafts, and a towing hook is arranged in the front of the tractor-trailer. Compared with the prior art, the overall movable structure is adopted, and the movable large melon and fruit harvesting, cleaning, grading and packaging equipment is suitable for sorting and packaging operation after harvesting large melons and fruits such as Hami melons and watermelons and capable of greatly improving the commercial quality and market value of the large melons and fruits such as Hami melons and watermelons, reduces labor intensity of manually sorting the large melons and fruits, improves production efficiency and increases economic benefits.