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为研究双基球扁药贮存过程中钝感剂的迁移现象，采用显微拉曼技术，表征了经加速老化后小分子钝感剂邻苯二甲酸二丁酯（DBP）和高分子钝感剂聚新戊二醇己二酸酯（NA）在双基球扁药中的浓度分布状态；并利用密闭爆发器试验，测试了双基球扁药的燃烧性能。结果表明，在由表及里的一维方向上，钝感剂DBP、NA的浓度呈指数规律变化，符合Fick第二扩散定律；加速老化过程中，在双基球扁药中DBP的迁移是双向的，钝感剂分布的浓度梯度会逐渐降低，扩散深度增加，浓度峰值位置向内偏移，双基球扁药燃烧渐增性能也随之下降；高温会加剧钝感剂的迁移现象，65，75，85 ℃高温条件下老化10天的球扁药样品，其燃烧渐增性特征值分别为1.3351、1.2917、1.1888；随着温度的升高，双基球扁药的燃烧渐增性能下降幅度也随之加大；而在相同条件下，NA较DBP具有更好的抗迁移特性。“,”In order to study the migration phenomenon of deterrent in double‑base oblate spherical propellant during storage， micro‑Roman technique was used to characterize the concentration distribution of dibutyl phthalate（DBP） and poly （neopentyl glycol adipate）（NA） in double‑base oblate spherical propellant after accelerated aging； and the combustion performance of double‑base oblate spherical propellant was tested by the closed bomb test. Results show that the concentration of DBP and NA changed exponentially from the surface to the inside in one‑dimensional direction， which conformed to Fick's second diffusion law. During the accelerated aging process， the migration of DBP in double‑base oblate spherical propellant was bidirectional， the concentration gradient of deterrent decreased gradually， the diffusion depth increased， the peak position of concentration shifted inward， and the combustion performance of double‑base oblate spherical propellant also gradually decreased. High temperature would aggravate the migration of deterrent. The progressive combustion characteristic values of double‑base oblate spherical propellant samples aged at 65 ℃，75 ℃ and 85 ℃ for 10 days were 1.3351， 1.2917 and 1.1888， respectively. With the increase of temperature， the progressive combustion characteristic values of double‑base oblate spherical propellant decreased. Under the same aging conditions， the anti‑migration characteristics of NA was higher than that of DBP.