An antenna selection method and a terminal, where the terminal includes m primary antennas configured for a first application program and n secondary antennas, where m≥1, and n≥1. The method includes, when the terminal is in a WI-FI connected state and a landscape state, obtaining a key factor and a radio frequency indicator that are of each of m+n antenna combinations, determining a first antenna combination based on the key factor and the radio frequency indicator, where the first antenna combination is a first-priority antenna combination of the m+n antenna combinations, and the first antenna combination includes at least one of the secondary antennas, and using the first antenna combination to perform communication for a second application program.