The invention relates to an earth wire suspension plate with a freely set angle. The earth wire suspension plate comprises two groups of anchor ear assemblies, earth wire suspension plate bodies, anchor ear reinforcing plates and earth wire suspension plate reinforcing plates, wherein each anchor ear assembly is formed by welding flat plates on two sides of an arc plate; each earth wire suspension plate body is welded in the middle of each arc plate of each anchor ear assembly; each earth wire suspension plate reinforcing plate is welded under each earth wire suspension plate body and is welded with each arc plate; the anchor ear reinforcing plates are located at the upper sides and the lower sides of the flat plates, are welded with the flat plates and the arc plates respectively, and are located at the side in the same direction as each earth wire suspension plate body; and the two groups of anchor ear assemblies are connected and fixed with each other through bolts. The earth wire suspension plate has the beneficial effects that (1) in the form of the anchor ears, the installation angle can be freely set; (2) the earth wire suspension plate body on an original steel pipe pole does not need to be cut off during changing operation, and high-altitude cutting and welding operations of installation personnel are avoided; (3) the anchor ears are in an arc form, so that the anchor ears can be stably clamped on the polygonal ridge, and the stabilizing effect is good; and (4) the suspending operation of an insulating hanger in suspending construction of the earth wire is not hindered.