Abstract: The demand for deterministic bearer in power communication services is growing increasingly, especially in new computing power services. Deterministic networking (DetNet) provides guaranteed transmission services. However, ensuring bounded end-to-end latency remains an important research direction. This paper explores a joint routing and scheduling method based on segment routing (SR) technology to address the challenge of achieving bounded latency and lower packet loss rates in deterministic networks. Through simulation experiments, it is found that this method, compared to traditional methods like CSQF, significantly reduces network packet loss rates and provides lower latency, thereby offering reliable transmission services for power communication businesses.