Background:Anyang Zhangdeng site is a Pre-Shang site by the unearthed stone artifact mainly and the age is equivalent to the late Erlitou culture

and it is about 200 km away from the Erlitou.Currently the trace element analysis of ancient animal skeletons’ samples has rarely been seen.Purpose: This paper attempts to study the Zhangdeng animal’s diet and the heavy metal exposure.The paleoenvironmental information is indicated by the former using a new method.Methods: Eight samples(enamel and dentin samples from 4 animals individuals) are tested using the synchrotron radiation X-ray fluorescence(SR-XRF) technique.Results: Fe and Mn contents of ZY9507 were very high and Sr and Zn contents of ZY9505 and ZY9506 were similar

Sr and Zn contents of ZY9508 were higher than the formers and the contents of Cu and As were also obviously higher.Conclusions: Based on the above results: the samples of ZY9507 had undergone diagenetic pollution and wasn’t suitable for the paleoenvironmental "fingerprint".ZY9505 and ZY9506 had the similar feeding habits and mainly ate the foods with lower Sr contents such as leaves class.Meanwhile

its lower accumulation of heavy metals shows the lower metal contents in Zhangdeng’s paleoenvironment.ZY9508 may be an omnivorous animal and mainly ate the foods with higher Sr such as the grass

while its foods contained relatively high animal protein.Moreover

its levels of Cu and As suggested that it may belong to the "exotic" animal and likely came from the Erlitou site which was the center of bronze casting.Overall

ethnic groups living Zhangdeng had the economic exchanges with the dominators of Erlitou

but the surrounding environment of the former was less affected by Erlitou bronze production activities on the whole.