An integrated magnetic element includes a conductive base, a bobbin, a winding coil, a first magnetic core assembly and a second magnetic core assembly. The conductive base includes a first conductive unit including a plurality of first conductive winding parts, a second conductive unit including at least one second conductive winding part, and a connecting part. The bobbin includes a bobbin body, a winding section, a channel and a plurality of insertion slots. The first conductive winding parts are inserted into corresponding insertion slots of the bobbin. The first magnetic core assembly is sheathed around the bobbin and partially embedded into the channel of the bobbin and the first holes of the first conductive winding parts. The second magnetic core assembly is sheathed around the second conductive unit of the conductive base and partially embedded into the second hole of the second conductive winding part.