The invention discloses a machining method of a fully-wound gas storage bottle and belongs to the technical field of high-pressure gas storage bottles. The machining method comprises the following steps that 1, an inner container is manufactured through a cold stamping and deep drawing manner; firstly, an aluminum blank is deeply drawn to form a cup-shaped semi-finished product, then the cup-shaped semi-finished product is strongly turned and thinned on strong turning equipment, and finally, the thinned ring-shaped semi-finished product is closed up on a closing-up machine to form the inner container; and 2, at least two layers of carbon fiber fully cover and are wound around the outer surface of the inner container in an intersecting manner to form winding layers, and the winding directions of two adjacent layers of carbon fiber are different. The gas storage bottle machined through the machining method solves the problem of uneven wining of the fiber, and the pressure-resisting ability of the gas storage bottle is better.