Abstract: LoRa Internet of Things is a rapidly developing and relatively mature technology in low-power wide area networks(LPWAN), which has received widespread attention from various vertical industries. Firstly, several common low-power wide area network technologies were compared, and LoRa has obvious advantages. Then provide relevant introductions to LoRa technology and LoRaWAN. Finally, starting from application innovation and urgent issues to be discussed, some feasible suggestions are proposed for the future development of LoRa, with a focus on solving the communication interference caused by channel resource competition between terminal nodes in terms of communication performance. Detailed analysis and optimization directions are proposed.