Fabricated concrete foundation and construction method thereof

The invention relates to a fabricated concrete foundation. Comprising an embedded part, a steel support column and a sleeve, the embedded part comprises a prefabricated reinforced concrete foundation and a plurality of L-shaped bolts, the L-shaped bolts are embedded in the prefabricated reinforced concrete foundation, and a first cast-in-place layer and a second cast-in-place layer are sequentially arranged between the sleeve and the steel support column in the direction away from the prefabricated reinforced concrete foundation; the first cast-in-place layer and the prefabricated reinforced concrete foundation are connected into a whole, and the second cast-in-place layer and the first cast-in-place layer are connected into a whole. By arranging the embedded part, the embedded part can be prefabricated in a factory, the pouring and maintenance conditions of the embedded part are not affected by weather, the quality of a finished product is higher, and the production efficiency can be improved; when the embed