The invention relates to an intelligent sofa having functions of heating and alarming. According to the intelligent sofa, two rotation rods are arranged on a sofa backrest, a supporting plate 1, a supporting plate 2 and connection shafts 1-3 arranged between the supporting plate 1 and the supporting plate 2 are arranged in sofa armrests, the connection shaft 2 is fixedly connected to a rotation hand wheel, the gear 1 on the connection shaft 2 is simultaneously engaged with the gear 2 on the connection shaft 1 and the gear 3 on the connection shaft 3, the supporting plate 1 is connected to a rotation shaft 1 and a rotation shaft 2, the gear 4 on the rotation shaft 1 is engaged with the gear 2, the gear 5 on the rotation shaft 2 is engaged with the gear 3, the rotation shaft 1 and the rotation shaft 2 are respectively provided with a snapping groove, the end portions of the rotation rods penetrate through the supporting plate 2 and are snapped into the snapping grooves, the sofa further comprises a waist support fixed on the sofa armrests, an electric heating sheet is embedded in the waist support, the power supply line of the electric heating sheet extends out from the lower end portion of the waist support, an adjustment frame is fixed on a sofa seat body and is provided with an alarming horn, a triggering plate is arranged above the alarming horn, the upper end portion of the triggering plate and the sofa backrest are fixed, and the lower end portion of the triggering plate is hinged to the adjustment frame.