An axle box assembly with three separate springs and without an end cap is characterized by comprising an upper box body and a lower box body which are fixedly connected with each other; mounting seats for the three springs are arranged on the upper box body; the center of the top of the upper box body is a steel spring mounting seat; two sides of the upper box body are rubber spring mounting seats; and the rubber spring mounting seats are centrosymmetric along the steel spring mounting seat. According to the design, the three springs are used for a single stage suspension, a spiral steel spring is arranged in the center of the axle box assembly, and mainly bears vertical load and provides vertical rigidity. Two rubber springs are positioned on two sides of the spiral steel spring, are centrosymmetric along the spiral steel spring, and mainly have effect of positioning an axle box in the longitudinal direction and the transverse direction. The axle box assembly with the three separatesprings and without the end cap is simple in structure, meets requirements on mounting space, and has carrying and positioning functions.