The invention discloses a unit curtain wall with buckle type guard edges. The unit curtain wall comprises a male stand column, a female stand column, a first sectional material, a second sectional material, a first fixing screw, second fixing screws, third fixing screws, notch parts, guard edge plates, glass and binders, wherein the first sectional material is fixed on a side plate of the male stand column through the second fixing screws; the second sectional material is fixed on a side plate of the female stand column through the third fixing screws; the male stand column and the female stand column are fixed through the first fixing screw; the lower parts of the male and female stand columns are both provided with the notch parts; the upper end part of each notch part is provided with a groove; the upper end parts of the guard edge plates are arranged in the grooves; the lower parts of the guard edge plates are provided with support members; the lower parts of the male and female stand columns are bonded with glass by using the binders; the male and female stand columns are both provided with the guard edge plates; and the effect of protecting the edge parts of the glass is achieved by appressing the glass through the mutual support among the support members. The unit curtain wall disclosed by the invention is simple in structure and simple and rapid to install.