2022-2023年，元谋猿人遗址联合考古队在云南元谋盆地老鸦塘地区开展了系统调查，发现具有明确地层堆积的旧石器遗址8处，统称“老鸦塘旧石器遗址群”，共发现石制品391件。根据各地点地层沉积关系，可将老鸦塘遗址群调查发现地层关系明确的石制品划分为三个阶段：第一阶段石制品仅2件，整体技术面貌尚不明确，年代可能为中更新世或更早；第二阶段石制品133件，光释光初步测年结果为距今74 ka-72 ka；第三阶段石制品74件，光释光初步测年结果为距今56 ka-33 ka。此外，地表和扰乱堆积还发现各类石制品182件。石制品初步分析结果表明，老鸦塘遗址群第二和第三阶段石制品的技术特征相近，总体表现出权宜性的石核-石片技术面貌和特征。老鸦塘旧石器遗址群的发现，为构建元谋盆地继“元谋人”之后的古人类和旧石器文化演化序列，以及深入理解和认识西南地区晚更新世以来的人类演化历史提供了重要材料。

During 2022~2023, the joint archaeological team of the Yuanmou hominin site conducted a systematic investigation in the Laoyatang region of the Yuanmou Basin. In total, eight Paleolithic sites with clear strategraphy have been found, along with 391 stone artifacts. Together, we name them as the Laoyatang Paleolithic site-complex. According to the depostional relationship among different sites, we can divide all stone artifacts into three phases. The first phase contains only two pieces, and thus the technological feature is not clear. The age of the first phase likely falls in the Middle Pleistocene or earlier. The second phase contains 133 stone artifacts and has been dated to ca. 74 ka-72 ka based on OSL dating, while the third phase contains 74 stone artifacts and was dated to ca. 56 ka-33 ka by OSL method. In addition, 182 stone artifacts have been collected from both surface and disturbed deposits. Lithic technologies in the second and third phases are close to each other and show expedient core-flake tools industry in general. On one hand, the finding of the Laoyatang Paleolithic site-complex provides valuable materials for reconstructing the evolutionary sequence of humans and Paleolithic culture following the Yuanmou hominind, and on the other hand, it provides important materials for deepening our understanding of human evolutionary history in Southwest China during the Late Pleistocene.