The utility model discloses a warning blanket which comprises a blanket body; a plurality of push switches are uniformly distributed in the blanket body, and a loudspeaker and a music storage chip are further arranged in the blanket body, wherein the blanket body is connected with a power cord; the push switches are connected with the power cord, the music storage chip and the loudspeaker after being connected in parallel. The warning blanket has the following benefits: (1), the structure is simple; and (2), the warning blanket is placed on the floor at a door, when a user goes out, the feet of the user can turn on as any one of the push switches, the loudspeaker can play warning and alert audio frequency recorded in advance to remind the user of closing lamps and taps and locking doors, so as to avoid resource waste and property loss.