To provide a simple method and simple apparatus for curing a concrete structure which requires no large-scale scaffold or trestle and can reduce costs of assembling installation, disassembling and curing in curing concrete, mortar, stone and tiles during or after hardening whose surfaces are wet and/or have irregularities.

The method and apparatus use a universal small continuous powerful suction type suction-cup apparatus which can cure a concrete 8 by mounting a suction bat device 1 enabling easy movement and removal and being capable of sucking products continuously and stably for about one month and a heat-shielding sheet 7 allowing double-sided application. The suction bat device 1 and the heat-shielding sheet 7 can be used twice or more if they are handled so as not to be broken on attachment or removal.