This paper describes in detail the deep-sea sediments along the Sagami Trough, which is an active subduction margin, mostly from the base of cliffs or knolls in the northern Sagami Bay area. Using Japan Agency for Marine Science and Technology (JAMSTEC) research vessels, we recovered 16 piston- and gravity-core samples of < 4 m in length. Six samples were collected from the knolls, four from the trough floor, and six from the landward trench slope. We determined the geologic ages using ¹⁴C and tephra analyses, and the magnetic fabrics using paleomagnetism and anisotropy of magnetic susceptibility (AMS). The average sedimentation rates are ～1 cm/kyr on the upper terrace of the Sagami Knoll, 4-61 cm/kyr on the trough floor, and 40-79 cm/kyr on the landward trench slope. The main direction of magnetic particle arrangement (K_max) is largely constant in the upslope direction at the foot of Sagami Knoll, the Sagami Trough floor, and the landward trench slopes; in contrast, K_maxis in the downslope direction in the upper terrace of Sagami Knoll.