The invention relates to a device for measuring secondary suspension parameters of a railway vehicle bogie based on a simulated frame. The device comprises a plurality of weights (h), the simulated frame (i) for test, a set of moving flame (j) for supporting the simulated frame for test, two secondary three-dimensional force platforms (k), a longitudinal actuator (1) of the simulated frame, two transverse actuators (m) of the simulated frame, two vertical actuators (n) of the simulated frame and four sets of vertical pull-down pin sensors and connecting rods (o), wherein the weights (h) are mounted on the simulated frame (i); the secondary three-dimensional force platforms (k) are respectively connected with the simulated frame (i) and a railway vehicle bogie to be measured (II); a spindle (7) for supporting the simulated frame is supported by the moving flame (j) for supporting the simulated frame; and one ends of the transverse actuators of the simulated frame are respectively hinged with framework locating supports and the other ends thereof are connected with the simulated frame. The device can be used for dynamic and static measurement of secondary comprehensive parameters ofvarious railway vehicle bogies.