In this study,w ed eveloped as uperstrong and reversible adhesive,whichcan possess ahigh bonding strength in the "adhesive" state and detach with the application of heating.A ni onic crystal (IC) gel, in whicha nI Cw as immobilized within as oft-polymer matrix, were synthesized via in situ photo-crosslinking of aprecursor solution composed of N, N-dimethyl acrylamide (DMAA) and am elted IC.T he obtained IC gel is homogenous and transparent at melt point. When cooled to the phase transition temperature of the IC,the gel turns into the adhesive with the adhesion strength of 5.82 MPa(on glasses), due to the excellent wetting of melted gel and at hin layer of crystalline IC with high cohesive strength formed on the substrates.T he synergistic effects between IC, polymer networks and substrates were investigated by solid state 1 HNMR and molecular dynamics simulation. Sucha n adhesive layer is reversable and can be detached by heating and subsequent re-adhesion via cooling. This study proposed the new design of removable adhesives,w hich can be used in dynamic and complex environments.