Power-supply distribution unit capable of accessing various three-phase power supplies and multi-type single-phase power supplies

The invention discloses a power-supply distribution unit capable of accessing various three-phase power supplies and single-phase power supplies, which comprises a separating power supply input component and input power-supply distribution component, wherein the power supply input component is used for transmitting the electric energy of an input power supply to the power-supply distribution unit capable of accessing various three-phase power supplies and single-phase power supplies; the input power-supply distribution component is separably connected to the power supply input component to distribute connection relations; and the mutual connection relation on one side of the input power-supply distribution component is in a delta type, Y type or a mutually-parallel type. The power-supply distribution unit is widely applicable to various commercial power specifications, and the corresponding power supply input component or/and input power-supply distribution component are replaced easily and quickly according