Communication link selection method, system and device and readable storage medium

The invention relates to a communication link selection method, system and device and a readable storage medium. The method comprises the following steps: acquiring all communication links, first transmission information data and second transmission information data; determining a target link set according to a link evaluation rule and the communication link; determining an optimal communication link according to the target link set, the optimal link rule and the first transmission information data; outputting switching determination data according to a link switching rule, the optimal communication link and the second transmission information data; switching the communication link according to the switching determination data; and if the target link set is abnormal, using 4G network connection. In this way, under the condition that the network environment changes constantly, the calculation intensity of the optimal link is reduced by changing the calculation method of the optimal link. 本申请涉及一种通讯链路选择方法、系统、设备和