To provide a continuous sterilization apparatus for liquid which continuously and efficiently sterilizes the liquid such as a liquid egg, milk, enables rapid heating and sterilization, can prevent the propagation of heat-resistant bacteria at the time of cool-down and capable of being simply washed and disinfected, a continuous sterilizing method using the same, and a heat-resistant flow channel sheet suitably used in this sterilization apparatus.

The continuous sterilization apparatus has a hot water tank for storing and circulating hot water with a predetermined temperature and a heating sterilization section attached in the hot water tank in a disposable and detachable manner and comprising the heat-resistant flow channel sheet having a liquid flow channel formed thereto.