The distribution of quantum States over long distances plays an important role in quantum communication and quantum network. The studies of effectively realizing quantum memory have evoked considerable interest in the scientific community. The DLCZ quantum repeaters relying on spontaneous Raman scattering has been demonstrated as an effective approach to realize long-distance quantum memory. Large multimode capacity, long lifetime and high storage efficiency are three important indicators to achieve high quantum storage. To promote storage efficiency of quantum storage, efforts have been devoted by increasing the optical thickness, using the cavity enhanced storage as well as optimizing the optical pulse shape and so on. Among them, optical cavity possesses the advantage of enhancing interaction force and suppressing spontaneous emission, and thus has evoked considerable interest in quantum memory. some recent research has demonstrated that the efficiency of quantum storage can be improved by using optical cavity in quantum storage based on cold atomic ensemble. However, the storage efficiency in long-lived storage in quantum storage still needs further improving. In this paper, the correlated pairs of photons and atomic spin waves are generated by spontaneous Raman scattering process in the 87 Rb cold atom ensemble. Based on optical cavity to enhance the interaction between light and atom, the generation rate of the correlated pairs of photons and atomic spin waves has been increased by 3.8 times. Meanwhile, the effects of optical cavity on the read field efficiency of atomic spin wave are studied. The results show that the read efficiency of spin wave has been increased by 1.5 times, which is more than that of without cavity, and its corresponding intrinsic read efficiency is 40.6%.The results of this paper provide an experimental basis for the further generation of high recovery efficiency quantum entanglement of photon-atom with high recovery efficiency.