Aerial work platform

The utility model discloses an aerial work platform, and relates to the technical field of aerial work platforms. The aerial work platform comprises a main platform and an extension platform, the extension platform can stretch out and draw back in the horizontal direction relative to the main platform, and height limiting mechanisms are arranged on the inner side of the end, away from the extension platform, of the main platform and the inner side of the end, away from the main platform, of the extension platform. The height limiting mechanism comprises a fixing sleeve and a height limiting assembly, the fixing sleeve is connected with the main platform and the extension platform, the height limiting assembly is arranged on the fixing sleeve in a sleeving mode, a travel switch is arranged on the fixing sleeve, a travel switch contact piece is arranged on the height limiting assembly, and when the height limiting assembly is stressed and can move downwards, the travel switch contact piece can trigger the trave