The invention discloses a breaker handcart frame, a breaker handcart and a switchgear. An installation end surface is arranged on the top of the breaker handcart frame for installing a mechanism cabinet; the handcart frame also comprises a breaker main shaft used for driving an operation of an arc extinguish chamber inside a solid-sealed polar pole; the breaker main shaft is rotatably installed inside the handcart frame; the handcart frame reasonably uses the inner space of the handcart frame; because the weight of the breaker main shaft is heavy, the gravity center of the handcart moves downwards after the breaker main shaft is arranged inside the handcart frame so as to make gravity centers of a pushing mechanism and the breaker handcart close and thus reduce or prevent the breaker hand cart from being stuck; the breaker handcart frame is compact in structure, beneficial to reducing the volume of the breaker handcart, does not need to additionally arrange an installation seat for the breaker main shaft, can improve structure stability, reduces handcart frame deformation caused by switching on and off of the arc extinguish chamber and guarantees a centering function.