A bollard fence that can be installed around a rack, the bollard fence includes: two ground fixing members; two vertical poles of which lower ends are installed in the open holes; L-connecting members having two perpendiculars coupling portions and having a fastening slope between the two coupling portions; a horizontal frame coupled between the L-connecting members; two-stage connectors having a vertical extension coupling groove; two sub-extension frames vertically coupled using the vertical extension coupling grooves; two L-couplers of which first ends are coupled to upper ends of the two sub-extension frames; and one horizontal frame.