A controller-included rotating electrical machine is provided which includes a rotating electrical machine and a controller. The controller 11 is equipped with a power supply terminal-included bus bar assembly and bus bar assemblies. The power supply terminal-included bus bar assembly has bus bars which are fixedly retained by resin and electrically wire a power modules and also includes a power supply terminal connecting with one of the bus bars. Specifically, the power supply terminal is installed in the power supply terminal-included bus bar assembly along with the bus bars, thereby resulting in decreased number of parts and production steps of the controller-included rotating electrical machine as compared with a conventional structure equipped with a power supply terminal and bus bars which are fabricated as assemblies and a power supply terminal installed in another assembly.