A circuit structure includes a circuit substrate surface having a circuit pattern; a plurality of bus bars are fixed to another surface of the circuit substrate with an interval therebetween; an electronic component straddles an interval between two adjacent bus bars, a first terminal is electrically connected to one bus bar and a second terminal is electrically connected to the circuit pattern; and a flexible sheet member is fixed to the bus bar to insulate the bus bar and the second terminal from each other, while electrically connecting the second terminal and the circuit pattern. The flexible sheet member includes: an adhesive layer fixed to the bus bar; a terminal conductor foil piece electrically connecting the second terminal and the circuit pattern; and an insulating layer that is interposed between the adhesive layer and the terminal conductor foil piece insulating the bus bar and the terminal conductor foil piece.