Quantum repeater is important for long-distance quantum communication and scalable quantum network. The basic idea of quantum repeater scheme is to divide the long-distance transmission channel into several shorter sub-channels and extend the entanglement to the whole transmission channel through the entanglement swap between two adjacent sub-channels. Duan-Lukin-Cirac-Zoller (DLCZ) protocol is a long-distance entanglement distribution scheme that has been widelystudied in recent years. The core of DLCZ protocol is the spontaneous Raman scattering process, which produces a photon and an associated spin-wave excitation with a certain probability. The entanglement lifetime is one of the key parameters of a quantumentanglement interface in the experiment of atom-photon entanglement. Although storage lifetime based on magnetic field insensitive spin-wave atom-photon entanglement has reached the order of milliseconds, there is no report on long-lived atom-photon entanglement source based on magnetic field-sensitive spin-wave till now. Based on the above research background, we place the 87Rb cold atomic ensemble in a polarization interferometer formed by a pair of beam displacers, which encode two spatialmodes of a photon associated with magnetic field sensitive spin waves generated by spontaneous Raman scattering process into a polarization qubit, realizing a long-lived atom-photon entanglement source based on magnetic field sensitive spin-wave. The storage lifetime of a magnetic field sensitive entanglement source is mainly affected by magnetic field noise and atomic motion. The effect of atomic motion is minimized by increasing the spin-wave wavelength through decreasing the angle between the write-read light and Stokes-anti-Stokes photon detection directions. The influence of magnetic field noise is minimized by accurately compensating for environmental magnetic field by utilizing retrieval efficiency as a reference. The entanglement source lifetime reaches 900?s, the Bell parameter S=2.58±0.03, which violates the Bell inequality by 19.3 standard deviations. This work enriched the study of atom-photon quantum interfaces and provided the foundation for the realization of long-distance quantum communication.