The invention relates to an inclination 120-degree quantitative tobacco packing technique based on loose-leaf inserting needle bulk curing, and belongs to the technical field of tobacco curing. The technique comprises the following operation steps that (1) material is made, a movable assembling and disassembling tobacco board, a fixing tobacco packing square frame support, a fixing tobacco packing square frame (comprising a movable square rod) and a U-shaped metal inserting needle are made; (2) the material is assembled; (3) tobacco is packed, harvested fresh tobacco leaf petioles face downwards, leaf tips face upwards, harvested fresh tobacco leaves are perpendicular to the movable assembling and disassembling tobacco board(which is inclined at the angle of 30 degrees), after the fixing tobacco packing square frame is full, the movable square rod is clamped on the fixing tobacco packing square frame, and the U-shaped metal inserting needle is inserted into the fixing tobacco packing square frame and located on the upper side of the fixing tobacco packing square frame; (4) tobacco packing quantity is controlled; (5) the movable assembling and disassembling tobacco board and the fixing tobacco packing square frame support are moved out; (6) curing is conducted after the fixing tobacco packing square frame is full of the tobacco leaves; (7) the tobacco leaves are discharged. The inclination 120-degree quantitative tobacco packing technique has the advantages of being large in tobacco packing quantity, achieving controllability, being high in tobacco packing speed and good in tobacco packing uniformity and homogeneity, saving labor, lowering cost, resolving the problem that tobacco leaf petioles are bent, and the like, and is worthy of being popularized and applied.