Data transmission exception recovery method and device and terminal equipment

The embodiment of the invention relates to the technical field of communication, in particular to a data transmission exception recovery method and device and terminal equipment. The data transmission exception recovery method is applied to the terminal equipment, and comprises the following steps: when data connection is in an activated state, starting data transmission exception detection; if the data transmission is abnormal, determining whether a protection timer is in a running state; and if the protection timer is not in the running state, starting the protection timer, and switching the current network mode. Through the mode, the data exception recovery time can be shortened, and the user experience is improved. 本申请实施例涉及通信技术领域，特别是涉及一种数据传输异常恢复方法、装置及终端设备。其中，数据传输异常恢复方法应用于终端设备，包括：在数据连接处于激活状态时，启动数据传输异常侦测；若数据传输异常，则确定保护定时器是否处于运行状态；若保护定时器未处于运行状态，则启动保护定时器，并切换当前网络模式。通过上述方式，本申请实施例能够缩短数据异常恢复的时间，提高用户体验。