The invention discloses an outer arc-shaped ice removal hammer with inner ball caps for a power transmission line. The outer arc-shaped ice removal hammer with the inner ball caps comprises a hammer body, wherein the lower end of the hammer body is provided with an arc-shaped hammer, the hammer body is fixedly connected with a handle, the inner end surface of the arc-shaped hammer is provided with the multiple inner ball caps, and a dome is arranged on the top of the hammer body. Compared with the prior art, the outer arc-shaped ice removal hammer with the inner ball caps for the power transmission line has the advantages that when the hammer is used, hitting force is more centralized, and sharp contusion and damage on the power transmission line are avoided. The ice removal hammer can substantially improve the ice removal efficiency and obviously quickens the job schedule and is a novel electrical appliance with high practical value.