The invention discloses a 
serum protein marker for early screening and diagnosis of esophageal 
squamous carcinoma, and belongs to the field of 
biomedical technology. The 
serum protein marker is any one or a combination of two or more of proteins encoded by P53, GNA11, GNAS, 
PTEN, ACVR1B, FBXW7, EGFR, 
PDGFRA, SRSF2, MEN1, DAXX or CASP8 genes. Based on the role played by 
cancer driving genes in tumorigenesis and development, a human 
protein chip encoded by 138 
cancer driving genes is customized, the human 
protein chip contains 180 human-derived recombinant proteins for screening out potential markers capable of diagnosing caners or other markers capable of characterizing cancers, 
early detection serum markers of the esophageal 
squamous carcinoma are primarily screened out by the 
protein chip, and then are verified by an ELISA 
indirect method experiment, a group of joint 
serum protein markers of esophageal 
squamous carcinoma for the early screening and diagnosis of the esophageal squamouscarcinoma is screened out at last for assisting the 
clinical diagnosis of the esophageal squamous 
carcinoma, so that the serum protein marker has better reference value.