Few of high-resolution paleomagnetic secular variations (PSV) since ca. 17ka were reported, which hinders our understanding of the geomagnetic field and its correlation with climate change during the period from the Last Glacial Maximum to the Holocene. In this study, paleosecular variations including relative paleointensity from the northern South China Sea were investigated in gravity piston core ZSQD2 (19.58°N, 114.16°E) with 190cm core length and 681m water depth. Grey silty clay composed mainly of the sediments characterized by the variant sedimentary structure and the amounts of foraminifera. Foraminifera enriched in the top 8cm and assembled in the irregular conglomeration between 8cm and 65cm. Some irregular hard clay mass with light color (most of them displayed in narrow strip) dotted in the grey silty clay. In the interval of 84~87cm,a large amounts of foraminifera enriched in a thin layer of fine-silt clay. Total 186 cylinder samples were continuously selected using glass box in lcm diameter and lcm height for paleomagnetic measurement, and total 91 cubic samples using the plastic box in 2*2*2cm parallel to cylinder samples were selected for magnetic fabric experiments. The AMS radiocarbon ages for selected planktic foraminifera constrained the individual chronology of the core, show that the core ZSQD2 provides high-resolution sediments during about 4 ~17cal. ka. Mineral magnetic and paleomagnetic measurements were carried out using discrete sediment samples. Rock magnetic results indicate that the main magnetic mineral is magnetite with a very homogeneous grain-size distribution in the pseudo-single domain range. Changes in the amount of magnetite are relative homogeneous while a little fraction of maghemite play less contribution to the magnetic properties below 30cm. Slight changes in magnetic minerals concentration, grain size and coercivity also meet the criteria for reconstructing the relative paleointensity records. Then, secular variations (directions and relative intensity) between about 4 ~17cal. ka can be reconstructed from this core. Four peaks and three vales both in inclination (' a ~g')and declination ('A ~G') present the general pattern of the geomagnetic field in the interval of 7~17cal.ka was overlooked when discussing PSV owning to the deposition rate difference). Comparison of our PSV features with other records from the western Pacific Ocean and stacked global curve displays the good consistent pattern. The significant direction anomaly between 12.4 ~ 13.4cal.ka both in inclination and declination can find counterparts in the paleomagnetic documents of MD81 core (6°30'N, 125049.2'E, from the western Equatorial Pacific Ocean) and the Japan Sea cores KT89-18 (32° 09' N, 133°54'E) and GH98-1232 (44°48.09'N, 139°41.97'E). The good consistent among these records suggest that this anomaly respond to the Gothenburg excursion, which was reported in Chinese and European lacustrine and marine sediments although it was still argued. However, the relative intensity low is between the interval of 13.2 ~15.0cal. ka, ahead of the direction anomaly about 1.6ka.