The invention discloses an aluminum alloy ladder comprising a ladder main body and a fixing base. The ladder main body comprises a left ladder body and a right ladder body, a standing platform is arranged between the head ends of the left ladder body and the right ladder body, and the fixing base is arranged at the bottom of the ladder main body. Fixing grooves are formed in the two ends of the fixing base correspondingly, the standing platform and the fixing base are both composed of telescopic plates, and holding rods are arranged on the two sides of the left ladder body and the two sides ofthe right ladder body correspondingly. According to the aluminum alloy ladder, the contact area between the ladder and the ground is increased, the fixing grooves are formed so that the ladder can befirmer in the use process, and moving of the bottom of the ladder is prevented; and through telescopic handrailings, acting points are provided for operators standing on the standing platform to move, personal safety is ensured, and the holding rods and a storing basket are arranged, so that the ladder is more convenient and practical.