This application relates to network management technologies, and disclosed are a method and device for scheduling slot resources. The method is: upon reception of each new data packet delivered by a high level, a first node maintaining corresponding sending remaining time according to a delay requirement of the new data packet; performing slot resource determination on each extracted data packet, starting from the new data packet, in ascending order of the sending remaining time; when it is determined that the number of data packets to be sent in the sending remaining time corresponding to any data packet is greater than the number of slots currently used by the first node, applying for new slot resources. Therefore, when learning that the slot resources cannot meet the delay requirement of the data packet to be sent, the first node can apply for new slot resources in time, so as to solve the slot resource scheduling problem under the time division resource allocation mechanism based on FI interaction, meet the low-delay requirement on message exchange in telematics, and ensure timely message transmission, thereby effectively ensuring the performance of the telematics.