A farm rail system comprises a farm rail and a side station power line the farm rail comprises a group of two reinforced concrete tracks arranged in a farm in parallel, and shapes thereof comprises arched and straight shapes center line states of two adjacent straight farm rails that are connected end-to-end comprise concentric and non-concentric the side station power line comprise several shells, bodies that are mutually connected end-to-end, an insulation material layer and a wire, side station power line is arranged along the tracks and electrically connected to a power grid also comprises is a power receiving module assembly, and the power receiving module assembly comprises a chassis, a fixed electrical connector, several conductive column plates and a sliding power receiving block the sliding power receiving block is in connects with a surface of wire the chassis is connected to the shell bodies in a matching and rolling way through power receiving block, the power column plates and the fixed electrical connector form a circuit branch. The farm rail system is a rail system that is insensitive to thermal expansion and contraction, thus ensuring that the shell bodies, an insulation material pipe and the wire can still work reliably in a long term when repeatedly experiencing the thermal expansion and contraction caused by rapid temperature changes of more than 80°C brought by sun exposure and large -current heating of the wire.