根据实测数据，对曹妃甸沙坝－泻湖海岸现代沉积的磁化率、频率磁化率与粒度、矿物的关系进行了探讨。曹妃甸海区沉积类型较为复杂，可划分为深水区、潮滩区、沙坝区、潮汐汊道区。磁化率、频率磁化率同粒度分布一样，各分区各具特点，表现了不同地貌部位与水动力环境的差异，显示出很强的分异现象。磁化率同金属矿物及磁铁矿具有较高的相关性，相关系数分别为０．６１３、０７３１。用磁化率分异度表征各分区沉积物的特点，深水区沉积物磁化率分异度ＤＤ：－０２＜ＤＤ＜０．２；沙坝区沉积物磁化率分异度ＤＢ： ０５＜ＤＢ＜２．１；潮汐汊道区沉积物磁化率分异度ＤＯ：－０１＜ＤＯ＜－０．２。不同潮滩沉积物磁化率分异度各有差异，南堡湖滩区沉积物磁化率分异度ＤＳＴ：－０．７＜ＤＳＴ＜０．１：而泻湖东北部潮滩区沉积物磁化率分异度ＤＮＥＴ：－０．１＜ＤＮＥＴ＜１．４。 According to the measured data, the relationship between magnetic susceptibility, frequency magnetic susceptibility and grain size and mineral in the modern sediments of the coastline of Caofeidian Dam-Lagoon is discussed. Sediment types in Caofeidian sea area are complex and can be divided into deep water area, tidal flat area, sand bar area and tidal basin area. Magnetic susceptibility and frequency magnetic susceptibility are the same as those of particle size distribution. Each subarea has its own characteristics, which shows the difference between different landforms and hydrodynamic environment and shows a strong differentiation phenomenon. Magnetic susceptibility and metal minerals and magnetite has a high correlation, correlation coefficients were 0.613,0731. The characteristics of the sediments in each subarea were characterized by the susceptibility of different subdivisions. The magnetic susceptibility of the sediments in the deep-water area was DD: -02