Amidst the swift progress in artificial intelligence, quantum computing, and high-density storage technologies, two-dimensional quantum materials have risen to prominence as pivotal materials for the innovation of next-generation electronic devices. This is attributed to their ultrathin atomic-scale thickness, unique electronic structures, and adjustable physical properties. Among these materials, two-dimensional iron-based chalcogenides have attracted considerable interest due to their diverse structures, abundant phase states, and modifiable stoichiometric ratios, which display a wide array of physical properties. Prior research has revealed that two-dimensional iron selenide, iron telluride, and their intercalation compounds possess novel characteristics such as interface superconductivity, two-dimensional ferromagnetism, and topological surface states, presenting vast potential for applications in the realms of spintronics and quantum computing.