With the proposal of “dual carbon” goal, the traditional power system will gradually transit to the novel power system. In this context, effectively dealing with extreme natural disasters such as hurricane with low probability and high losses is a great challenge in the construction of novel power systems. Hardening measures have been widely used in improving the resilience of the novel power system. However, in the process of formulating the existing hardening measures, less attention has been paid to the vulnerable lines on transmission network side within the novel power system, and the risk of multiple failures caused by the disconnection of vulnerable lines under disasters has been ignored, which may weaken the applicability of the hardening scheme. This paper focuses on hurricane disasters, takes the load loss under the disaster and the ratio of vulnerable line preservation as resilience quantitative indices, and proposes a resilience enhancement model of novel power system considering the hardening of vulnerable lines. According to the characteristics of the resilience index, the load loss under the disaster and the ratio of vulnerable line preservation are respectively used as the objective function and the constraint condition. The model aims to minimize the total cost of line hardening and load shedding under hurricane disasters, while considering the constraint of ratio of vulnerable line preservation. Taking the IEEE RTS 24 system as an example, the analysis shows that the proposed method can ensure that the resilience index meets the requirements.