A structure with detachable battery for an electronic device includes an electronic device casing, a guiding structure, and a sliding tongue. The electronic device casing has a chamber for receiving a battery. The guiding structure is disposed on an outer sidewall of a battery. The guiding structure includes a guiding groove. The guiding groove and the chamber are open toward each other. An engaging groove is laterally disposed in the guiding groove. The engaging groove is open in a transverse direction of the chamber. A releasing-guiding slope opposite the engaging groove is disposed in the guiding groove to extend from the opening of the guiding groove and tilt toward the engaging groove. The sliding tongue is disposed slidably on an inner sidewall of the chamber such that battery becomes fixed inside the chamber or slidably abuts against the releasing-guiding slope, thereby ejecting the battery out of the chamber.