Provided is an electronic device including a base structure, panel, water blocking film and first glue structure. The base structure has a first surface and a second surface. The base structure includes a base body, receiving recess and slit. The panel is disposed in the receiving recess and on the second surface. The panel includes a panel body and a first signal transmission element connected to the panel body. The first signal transmission element passes through the slit. The water blocking film is disposed on the first surface of the base structure to cover the slit. A first hole is disposed between the base structure and first signal transmission element or between the water blocking film and first signal transmission element. The first glue structure is disposed in the first hole. A first water blocking region is formed between the base structure, water blocking film and first glue structure.