A termination configuration of a silicon carbide insulating gate type semiconductor device includes a semiconductor layer of a first conductivity type having a first main face, a gate electrode, and a source interconnection, as well as a circumferential resurf region. The semiconductor layer includes a body region of a second conductivity type, a source region of the first conductivity type, a contact region of the second conductivity type, and a circumferential resurf region of the second conductivity type. A width of a portion of the circumferential resurf region excluding the body region is greater than or equal to ½ the thickness of at least the semiconductor layer. A silicon carbide insulating gate type semiconductor device of high breakdown voltage and high performance can be provided.