The invention discloses a reinforcing method of ultra-deep stratum shield breaking-in and breaking-out. The reinforcing method comprises the following steps of (1) construction preparation, (2) launching shaft breaking-in opening reinforcing construction, (3) receiving shaft breaking-out opening reinforcing construction, (4) grouting construction, (5) water-proof construction and (6) drilling equipment detachment. The reinforcing method of ultra-deep stratum shield breaking-in and breaking-out is simple in steps, improves the reinforcing efficiency of breaking-in and breaking-out, simplifies steps of a machining technology, and greatly improves the reinforcing quality, the construction difficulty and cost are reduced, and the requirements of shield machining of tunnels in different depthscan be met.