Tower crane foundation

The utility model relates to the technical field of building construction, and discloses a tower crane foundation which is used for being arranged in a foundation pit, the bottom surface of the foundation pit comprises a high span and a low span which are adjacently arranged and are different in height, the tower crane foundation is characterized by comprising a base, the base comprises a steel embedded part, two steel supporting columns and two concrete piers, the two supporting columns are arranged on the low span in a spaced mode, the two concrete piers are arranged on the high span in a spaced mode, the steel embedded part comprises four embedded sections, the embedded sections extend vertically and are arranged in a rectangular mode, the bottoms of the embedded sections are located in the same plane, and the two concrete piers are arranged in the same plane. Wherein the bottoms of two embedded sections are supported on one concrete pier in a one-to-one correspondence mode, and the bottoms of the other tw