The invention discloses a quick-unfolded type portable notebook computer work table which comprises a wrapping part and a work bench component. The wrapping part comprises upper layer space and lower layer space. The work bench component comprises a work bench board, an inserted connection rod, a stopping block and an adjustable locking device, wherein the inserted connection rod for supporting the wrapping part is arranged in the upper layer space, the work bench board is in the lower layer space and fixed on the bottom surface, two lateral long-stripe holes matched with the specifications of notebook computers are formed in the work bench board, the positions of the two lateral long-stripe holes correspond to each other, the stopping block is arranged in the lower-side long-stripe hole, the adjustable locking device is arranged in the upper-side long-stripe hole, and an inserted connection opening matched with the inserted connection rod is arranged at the back of the work bench board. The quick-unfolded type portable notebook computer work table is reasonable in structure, convenient to operate, simple to maintain and safe and reliable.