Outdoor garbage can capable of automatically prompting whether garbage is full

The utility model relates to the technical field of garbage cans, in particular to an outdoor garbage can capable of automatically prompting whether garbage is piled up or not, which comprises a peripheral frame, a top plate is fixedly mounted at the top end of the peripheral frame, three garbage cans arranged at equal intervals are mounted in the peripheral frame, and an indicator lamp is fixedly mounted on each garbage can. Every two adjacent garbage cans are separated through a partition plate fixed to the peripheral frame, and a space allowing garbage to be put in is formed between the peripheral frame and the top plate. According to the garbage can, through the contact plate arranged on the garbage cover and the metal contact pieces arranged on the contact plate and the garbage cover, when the garbage can is full of garbage, the garbage can extrudes the contact plate until the metal contact pieces on the contact plate are in contact with the metal contact pieces on the garbage cover, and at the moment, t