The invention relates to a clamp spring connecting type road lamp housing. The clamp spring connecting type road lamp housing comprises an upper housing, a lower housing and a clamp spring which clamps the upper housing and the lower housing; the upper housing and the lower housing are respectively in a shape of an oval; long shafts of the ovals of the upper housing and the lower housing are opened and closed through a hinge on the top end; hook grooves which are symmetric to the sections of the long shafts of the ovals are respectively arranged at the outer parts of the sidewalls of short shafts of the ovals of the upper housing and the lower housing; the clamp spring is in a shape of an arch-shaped frame, and both the upper end and the lower end of the clamp spring are equipped with hook heads; opening grooves through which special tools extend are also arranged in the hook heads; the upper hook head of the clamp spring is used for hooking the upper housing hook groove, and while the lower hook head is used for clamping and hooking the lower housing hook groove. The clamp spring connecting type road lamp housing has the beneficial effects that 1, the clamp spring is an independent part, the upper housing and the lower housing are clamped and connected under the effect of the spring, screws are not arranged in an entity of the aluminum alloy upper housing or lower housing, and thus the connecting is stable and firm; 2, the structure is extremely simple, the manufacturing is convenient, and therefore, the manufacturing cost of the housing is lowered down.