Jia Lanpo has done a lot of research in Quaternary geology, vertebrate paleontology, paleoanthropology and archaeology, among which paleolithic archaeology is the most remarkable. As a recognized paleolithic archaeologist and paleoanthropologist in the world, Jia Lanpo participated in the excavation of Zhoukoudian as early as 1930s. Jia Lanpo presided over the excavation of Zhoukoudian in 1935. In addition to a large number of stone tools and vertebrate fossils, three relatively complete "Peking man" skull fossils were found in 1936+065438+ 10, which shocked the international academic community. After 1949, he presided over the excavation of Zhoukoudian for many times. 1984, Jia Lanpo and his student and archaeologist Huang Weiwen wrote the book "Excavation of Zhoukoudian", which described and evaluated the excavation history of Zhoukoudian in detail and systematically summarized the excavation and research work of Zhoukoudian. This book has been translated into Japanese and English. He has done a lot of research on the paleolithic in northern China, and the representative of the year of ancient culture in northern China laid a theoretical foundation for the development sequence of paleolithic culture in northern China. Jia Lanpo loves China's paleolithic research very much. 1956 published a new theory of Chinese ape-man stone tools in Archaeological Newsletter. 1957 published "On the Relationship between Early Paleolithic Stone Culture in China". It can be seen that he focused on theoretical research rather than simply describing the stone tools themselves. In the late 1950s, there was a debate in China academic circles about whether "Beijingers" had ever used bone implements. Jia Lanpo supported the view of French paleolithic archaeologist (Breuil) that "Beijingers" used bone implements. He discussed this issue in 1960' s On the Skeleton of Chinese Apes and 1964' s Chinese Apes and Their Culture. Jia Lanpo divided the bone wares made by Zhoukoudian "Beijingers" into three categories. The first is an angular tool, the second is a water holding tool, and the third is a sharp knife-shaped tool made of limb bones. Many scholars at home and abroad attach importance to the viewpoint of bone implements.

From 1950s to 1970s, Jia Lanpo's research on China Paleolithic mainly focused on northern China, especially Shanxi, Shaanxi, Inner Mongolia, Ningxia and other places, especially Shanxi. From 65438 to 0958, he and Pei Wenzhong studied the paleolithic found in Ding Cun, Shanxi Province, and pointed out that Ding Cun culture was a new cultural discovery at the beginning of the middle Paleolithic period. In 1962 "Rivers", he pointed out that the age of river ruins belongs to the early Middle Pleistocene, and Ding Cun culture was gradually developed from river culture. 1972, Jia Lanpo, Gaipei and You Yuzhu published the Excavation Report of the Paleolithic Site in Zhiyu, Shanxi Province, and made a comprehensive study on landform, stratum, vertebrate fossils and paleolithic, pointing out that there are at least two systems for the development of paleolithic culture in northern China, namely "River-Ding Cun system" and "Zhiyu system, the first place in Zhoukoudian". After putting forward the inheritance relationship of China's primitive culture, it also puts forward the argument that the microliths in China, Northeast Asia and North America may have originated in North China. Domestic and foreign colleagues have paid great attention to these views.

Jia Lanpo has made outstanding contributions to the study of human origin and evolution. He published the article "The stratum in Nihewan period is the earliest human foothold" in Science Bulletin, and proposed that the stratum in Nihewan belongs to the early early Pleistocene in China and is the earliest human habitat. It is pointed out that "Beijingers" have many advanced qualities in physical characteristics and stone tools making, and have the ability to use and manage fire, so they do not represent the oldest human beings and the most primitive culture, and people's understanding of China's ancient culture is still very late. Before the 20th century, no exact Stone Age sites were found. Until the beginning of the 20th century, some foreign scholars did not believe that Paleolithic culture existed in China. From the early 1920s, after the discovery of paleolithic tools in Gansu, Ningxia and Inner Mongolia, especially after Pei Wenzhong discovered the first complete Peking man skull fossil in 1929, and then discovered the stone tools and fire relics used by Peking man, this situation changed. However, due to outdated concepts, some scholars have suggested that China has no culture earlier than "Beijingers". Jia Lanpo's and Wang Jian's papers undoubtedly challenge this view, which has been debated in academic circles for more than a year. Their scientific conclusions were later confirmed by the discovery of the tooth fossils of Yuanmou people in the western post-capital culture and the skulls of Lantian people. The book "Xihoudu-Early Pleistocene Cultural Site in Shanxi" published by 1978 is the result of their years' research on early Pleistocene human beings and their cultural problems in China. As early as 1930s, Jia Lanpo made an in-depth study on the geological stratification, cultural nature and living environment of Beijingers. Jia Lanpo also pointed out that the climate in North China changed alternately from cold to warm during the hundreds of thousands of years when Beijingers lived in Zhoukoudian, according to the different properties of animal fossils unearthed from Peking man sites. After liberation, Jia Lanpo published many papers and monographs.

His Outline of Human Skeleton (1954) and From Ape Brain to Modern Human Brain (1954) are excellent reference books for medical schools. Jia Lanpo also wrote Paleolithic Culture (1957), Zhoukoudian-Beijingers' Home (1975) and Ancient Residents on Chinese mainland (1978), the last two of which have been translated into English, Japanese, German and Spanish. Jia Lanpo's Dawn of Man was published in 1982. This book is an illustrated anthropological work, which systematically expounds the origin and evolution of human beings and includes the latest scientific research results.

Jia Lanpo also pays attention to vertebrate zoology and Quaternary geology. As early as 1930s, he went to Yanjinggou, Wanxian County, Sichuan Province to collect fossils, and together with Bian Mei, he discovered mammal fossils, a group of representative giant pandas-the saber-toothed elephant. 195 1 year, he and geologist Wang Yuelun studied the glacier remains in Zhoukoudian, which provided new clues for studying the living environment of Beijingers. 1982, Jia Lanpo and Wei Qi published a paper in Geology magazine, "Suggesting the Establishment of Quaternary Standard Profile in China Based on the Achievements of Paleoanthropology and Archaeology", which is an example of the combination of paleolithic archaeology, paleoanthropology, paleontology and Quaternary geology.

Jia Lanpo has been engaged in research and writing tirelessly since 1930s, and published more than 400 articles (kinds). He has made outstanding contributions in the fields of geology, paleontology, paleoanthropology and archaeology in China. Because of his achievements in science, he was invited to give lectures in Japan, the United States, Switzerland, Algeria, Hong Kong and other countries and regions many times, and was warmly welcomed by his peers.