The study analyzed the major elements in the Longshan loess profile in central Shandong, China, comparing it to loess in the Loess Plateau. The results show that the Shandong loess has similar chemical composition to typical loess in the Loess Plateau. The Shandong loess is in a moderate weathering stage with higher chemical weathering than the Loess Plateau loess. The elements in the Shandong loess show a different activity sequence and capacity compared to the Loess Plateau loess. This suggests that the Shandong loess has a different source, possibly from the Yellow River sediments and the North China Plain. The study also found that the climate and chemical weathering in the region changed over time, with stronger winter monsoons in the past leading to different weathering patterns.