The invention discloses a prefabricated concrete tower column foundation in the shape like the Chinese character 'jing' and a construction method thereof. The tower column foundation comprises a main foundation body; the main foundation body comprises a core block column, beams in the shape like the Chinese character 'jing' and foundation bottom slabs; each beam in the shape like the Chinese character 'jing' perpendicular to the corresponding side end surface is connected to the positions of the corner edges of the side end surface on the periphery of the core block column, each side end surface is provided with two beams in the shape like the Chinese character 'jing', and the axes of the beams which are in the shape like the Chinese character 'jing' and connected to the side end surfaces on the opposite sides are aligned and coaxial; the two beams in the shape like the Chinese character 'jing' with the aligned and coaxial axes and the core block column clamped between the two beams are integrally connected through a prestressing tendon penetrating through the beams and the core block column; the position between the side end surfaces of the adjacent beams in the shape like the Chinese character 'jing' is fully connected with the horizontal foundation bottom slab, and all the foundation bottom slabs are located on the same elevation. The prefabricated concrete tower column foundation is a high tower column structure foundation capable of being produced in a prefabricated and industrial mode, the construction period of various tower column foundations can be substantially shortened, the weight of prefabricated members of the prefabricated concrete tower column foundation is decreased, and the prefabrication cost, transport cost and lifting cost of the whole engineer are reduced.