<p>A theoretical scheme is proposed to enhance the entanglement in a hybrid cavity magnonics system by exploiting the synergistic effect of two-magnon squeezing and coherent feedback. The system comprises the cavity mode, magnon Kittel mode and HMS mode. Compared to using either squeezing alone or feedback alone, the cavity–Kittel entanglement and the cavity–HMS entanglement are significantly enhanced. The optimal enhancement of genuine tripartite entanglement is realized through the simultaneous presence of these two mechanisms. Moreover, the robustness of entanglement against thermal effects can also be significantly improved. This work offers a viable approach for achieving high-quality entanglement resources in cavity magnonics, with potential applications in quantum information processing.</p>