An antenna module and an electronic device are provided. The antenna module includes a dielectric substrate, a patch array, a feed ground layer, a feed ground portion, and a feeding portion. The feed ground portion is electrically connected between the patch array and the feed ground layer. The feed ground portion has a first part, a second part, a third part, a fourth part, and the fifth part. The first part is electrically connected with the patch array, and the third part and the fifth part are electrically connected with the feed ground layer. The feeding portion is configured to feed a current signal, where the current signal is coupled to the patch array to excite the patch array to resonate in a first frequency band, and the current signal is coupled to the feed ground portion to excite the feed ground portion to resonate in a second frequency band.