A network fault handling method and device, the method including obtaining a first data amount of uplink data sent by a terminal device within preset duration, obtaining a second data amount of downlink packet data received by the terminal device within the preset duration, and performing, in response to determining that the first data amount is greater than a first threshold and the second data amount is equal to 0, at least one of re-establishing a radio resource control (RRC) connection or re-obtaining an Internet Protocol (IP) connection resource.