Related studies of stone tools and cutting patterns on plant residues has indicated that the bladed threshing sledge was used on a large scale in the Near East. However, up to now, there has been no evidence that either threshing-boards or threshing-sledges were used in China or anywhere the Far East. As described in this paper, cutting patterns on plant residues found at the Heying site provide first evidence that the bladed threshing sledges may have been used in China as far back as the Shang - Zhou period of China. This discovery has important implications with reard to threshing and processing methods used for ancient crops and for development of agricultural archaeology in China.