The invention discloses a corn stalk pile and a construction method thereof. The corn stalk pile comprises a smooth reinforced concrete precast corn stalk pile, a reinforced concrete precast corn stalk hole pile, a reinforced concrete precast corn stalk infiltration pile and a corn stalk pile buckle, wherein a permeable hole is designed in the pile wall on the basis of the smooth corn stalk pile; a groove is reserved between holes in the pile wall on the basis of the corn stalk hole pile and is tied by a fabric line fabricated by infiltrating geotextile; the corn stalk pile buckle comprises a core cylinder, cantilevers, a bearing and a gravity pendulum; more than three compartments which are arranged at crossing angles of 120 degrees are arranged on the core cylinder; the cantilever is inserted into each compartment; the positions of the three cantilevers are fixed through the bearing; the gravity pendulum is vertically suspended at the center of the core cylinder; and the top part of the gravity pendulum extends out of the core cylinder.