The invention discloses a bogie for a freight car and the freight car. The bogie for the freight car comprises two wheel pairs, two side frames arranged at the outer side the wheel pairs, a swing bolster fixedly connected with the centers of the two side frames, and a K-shaped support device. The K-shaped support device passes through preset holes at both sides of the abdominal region of the swing bolster, a first upper end part, a second upper end part, a first lower end part and a second lower end part of the K-shaped support device are respectively and elastically connected with the two side frames, the first upper end part, the second upper end part, the first lower end part and the second lower end part are symmetrical relative to the central line of the swing bolster. The bogie for the freight car ensures that reinforced ribs for bearing vertical loads can be arranged on the middle part of the swing bolster without arranging the K-type support device on the middle part of the bolster, thereby increasing the rigidity of the bogie against diamond deformation, and increasing the strength of the bolster for bearing the vertical loads.