Abstract: With the rise of the paperless office, a large number of books need to be digitized. The efficiency of semi-automatic scanner is difficult to meet the needs of office, so the automatic scanning robot has become a new research direction in the field of scanning robot. It has the advantages of fast scanning speed, high degree of automation and long battery life. In this paper, the automatic scanning robots will be reviewed. Firstly, the term of Automatic Scanning Robot is defined, and its advantages and application fields are outlined. Then, the principle and key technologies of Automatic Scanning Robot are analyzed. The robot is classified into suction cup type, friction type and other types, and the research results of different countries are introduced. Finally, the challenges and problems of robot are analytically summarized, and the future development is prospected.