Abstract: This paper reports the results of the tentative excavation of Zangshan Paleolithic cave site. It was found in the early 1986 and was tentatively excavated in September of the same year. The Paleolithic cave site is located in a hill about 30km northeast of Yingkou county at N.40°30′01″, E.122°30′35″.It is about 20m above the local ground surface and 110m above the sea level. The entrance of the cave is facing the east.
The excavation was undertaken in two parts: at entrance part and in central part of the cave. The deposits were divided into two parts: The upper part and lower part. In the upper part we found 8 kinds of the mammalian fossils such as Gulo sp., Myspalax aspalax (see table 4), but no stone artifacts were found. Thirteen kinds of the mammalien fossils including Macaca robustus, Equus sanmeniensis, Crocuta ultima as well as 13 stone artifacts including 2 broken artifacts, 2 bipolar cores, 1 bipolar flake, 1 half flake, 1 single side convex scraper, 1 end scraper, 2 single side straight scrapers and 1 graver were found in the lower part. They were mainly retouched on the dorsal surface and crudely trimmed by direct hammer percussion.
According to the deposits, artifacts characters, mammmalien fossils and paleomagnetic dating, the age of the lower part of the cave deposits could be compared to that from Loc. C of the Jinniushan sites and was dated to be of the upper stage of Middle Pleistocene and the upper part of Zangshan site to Upper Pleistocene in age.

Key words: Zangshan; Yingkou; Cave site; Paleolith; Middle Pleistocene