5G message fallback method, system and device

The invention discloses a 5G message fallback method, system and device, and the method comprises the steps: receiving a 5G message and a 5G fallback message which are transmitted by a 5G message platform and are based on the content of a target message, and the 5G fallback message comprises an intelligent short message fallback message carrying an H5 link and a short/multimedia message fallback message carrying an H5 link; according to a preset message detection priority sequence, capability detection is carried out on terminal equipment of a target terminal user to obtain a message type supported by the terminal equipment, and the message detection priorities are sequentially 5G message capability detection and intelligent short message fallback message capability detection from high to low; and sending a message corresponding to the message type with the highest priority to the target terminal user based on the message type with the highest priority supported by the terminal device. 本申请公开了一种5G消息回落方法及系统、装置，