The invention relates to a process for gluing a graphite heat exchanger lining and carbon fiber. The process is characterized by specifically comprising the following steps: performing surface treatment, coating a primer, bonding a first layer of carbon fiber, overlapping carbon fiber layers, and performing sealing. As the carbon fiber is overlapped in a cross overlapping manner, overlapping of bonding joints can be avoided; each layer of carbon fiber and a glued lining steel plate are tightly and uniformly compressed with a roller, each bonding joint is greater than or equal to 10mm, and at least more than two layers of glue are used, so that probability of leakage can be reduced; due to adoption of special bonding glue, a carbon fiber layer or a glass fiber layer can be relatively solidly bonded and is good in corrosion resistance and high temperature resistance when being glued with the lining steel plate.