The invention discloses a lamplight induction type highway curve demarcating pile. Two through holes are formed in the side wall of a metal pipe pile; a connecting piece is arranged at the upper part of the metal pipe pile; a clamping piece is arranged in the connecting piece, and is an annular panel; the outer ring of the clamping piece is connected with the inner wall of the connecting piece; a cylindrical groove is formed in the bottom of a light gathering and scattering ball; the upper end of the connecting piece is plugged in the cylindrical groove in the bottom of the light gathering and scattering ball. A cylindrical slotted hole is formed in the cylindrical groove in the bottom of the light gathering and scattering ball. One end of a light guide fibre penetrates through the clamping piece in the connecting piece upwards from the metal pipe pile, and extends into the cylindrical slotted hole of the light gathering and scattering ball; the other end of the light guide fibre penetrates through the clamping piece in the connecting piece downwards, and extends into the metal pipe pile. The two ends of the light guide fibre respectively penetrate through the through holes in the side wall of the metal pipe pile and extend to the outside of the metal pipe pile. According to the lamplight induction type highway curve demarcating pile, curve conditions of a highway can be obviously demarcated in dark, so that a driver can deal with the conditions in time.