A scroll fluid machine comprising: a first scroll member provided with a spiral first wall on a first end plate; and a second scroll member that is provided with a spiral second wall on a second end plate disposed so as to face the first end plate, and that relatively revolves by engagement between the second wall and the first wall with the second wall being offset from the first wall by a turning radius, wherein an inclined section that continuously reduces an inter-facing-surface distance between the first end plate and the second end plate facing each other, from an outer circumferential side toward an inner circumferential side of each of the first wall and the second wall is provided, the inclined section is provided over a range of 180° or more around a spiral center, each of the first wall and the second wall has a wall inclined section (3b1, 5b1) that has a height of the wall continuously reducing from the outer circumferential side toward the inner circumferential side so as to form the inclined section, each of the first end plate and the second end plate has an end plate inclined section (3a1, 5a1) having a tooth bottom surface that faces a tooth tip of the wall inclined section (3b1, 5b1), and that inclines in accordance with an inclination of the wall inclined section (3b1, 5b1), a wall flat section (3b2, 3b3, 5b2, 5b3) having no change in height is provided in an outermost circumferential part and/or an innermost circumferential part of each of the first wall and the second wall, a wall inclined connecting section (3b4, 3b5, 5b4, 5b5) is provided to connect the wall inclined section (3b1, 5b1) and the wall flat section (3b2, 3b3, 5b2, 5b3), an end plate flat section (3a2, 3a3, 5a2, 5a3) corresponding to the wall flat section (3b2, 3b3, 5b2, 5b3) is provided in each of the first end plate and the second end plate, an end plate inclined connecting section (3a4, 3a5, 5a4, 5a5) is provided to connect the end plate flat section (3a2, 3a3, 5a2, 5a3) and the end plate inclined section (3a1, 5a1), one or a plurality of circular arcs each having an intersection with the wall and the end plate inclined connecting section ( 3a4, 3a5, 5a4, 5a5) as a contact point is formed as a contour line (Ct1, Ct2, Ct3) on the end plate inclined section (3a1, 5a1), the first scroll member and the second scroll member are disposed such that the contact point and a turning locus center position (Tr) of the second scroll member are at a same position in a spiral direction at a time of the revolving, and characterized in that the inclined section has an angle of 0.2° or more and 4° or less. a first scroll member provided with a spiral first wall on a first end plate; and a second scroll member that is provided with a spiral second wall on a second end plate disposed so as to face the first end plate, and that relatively revolves by engagement between the second wall and the first wall with the second wall being offset from the first wall by a turning radius, wherein an inclined section that continuously reduces an inter-facing-surface distance between the first end plate and the second end plate facing each other, from an outer circumferential side toward an inner circumferential side of each of the first wall and the second wall is provided, the inclined section is provided over a range of 180° or more around a spiral center, each of the first wall and the second wall has a wall inclined section (3b1, 5b1) that has a height of the wall continuously reducing from the outer circumferential side toward the inner circumferential side so as to form the inclined section, each of the first end plate and the second end plate has an end plate inclined section (3a1, 5a1) having a tooth bottom surface that faces a tooth tip of the wall inclined section (3b1, 5b1), and that inclines in accordance with an inclination of the wall inclined section (3b1, 5b1), a wall flat section (3b2, 3b3, 5b2, 5b3) having no change in height is provided in an outermost circumferential part and/or an innermost circumferential part of each of the first wall and the second wall, a wall inclined connecting section (3b4, 3b5, 5b4, 5b5) is provided to connect the wall inclined section (3b1, 5b1) and the wall flat section (3b2, 3b3, 5b2, 5b3), an end plate flat section (3a2, 3a3, 5a2, 5a3) corresponding to the wall flat section (3b2, 3b3, 5b2, 5b3) is provided in each of the first end plate and the second end plate, an end plate inclined connecting section (3a4, 3a5, 5a4, 5a5) is provided to connect the end plate flat section (3a2, 3a3, 5a2, 5a3) and the end plate inclined section (3a1, 5a1), one or a plurality of circular arcs each having an intersection with the wall and the end plate inclined connecting section ( 3a4, 3a5, 5a4, 5a5) as a contact point is formed as a contour line (Ct1, Ct2, Ct3) on the end plate inclined section (3a1, 5a1), the first scroll member and the second scroll member are disposed such that the contact point and a turning locus center position (Tr) of the second scroll member are at a same position in a spiral direction at a time of the revolving, and characterized in that the inclined section has an angle of 0.2° or more and 4° or less.