Exploration of new superconductors has always been one the research directions in condensed matter physics. We report here a layered heterostructure [(Fe,Al)(OH)2][FeSe]1.2, which is synthesized by hydrothermal ion-exchange technique. The structure suggested combination X-ray powder diffraction and electron (ED). [(Fe,Al)(OH)2][FeSe]1.2 composed alternating stacking tetragonal FeSe layer hexago...