The invention relates to an airport taxiway side light which comprises a shell with an opening on the top end and a light transmission piece connected with the opening end of the shell, wherein the shell and the light transmission piece form an inner cavity together, a circuit board and a light source are arranged in the inner cavity, the light source comprises a light source locating cover and aplurality of light source units, wherein the light source locating cover is fixed above the circuit board and provided with a plurality of grooves which penetrate through the flange along the peripheral wall, a flange is arranged at the bottom of the light source locating cover, the plurality of light source units are respectively located in the grooves of the light source locating cover, and thelower end of each light source unit is electrically connected with the circuit board after passing through the flange. In the airport taxiway side light, a plurality of luminophors are arranged on a single circuit board monomer, and a plurality of circuit board monomers are arranged surrounding the circumference of the light source locating cover, thereby realizing 360 degree omnidirectional illumination, supplying uniform light spots and solving the problem of illumination blind spots.