A setting support device, supporting the setting of a plurality of control parameters (A, B, C, P', C' p, C' v) used in control processing in a motor control device, and the setting support device comprising: a test action instruction part, changing at least one value among the plurality of control parameters (A, B, C, P', C' p, C' v), so as to enable the motor control device to actually control multiple test actions, or controlling multiple test actions by utilizing the simulation of a hypothetical model of the motor control device, wherein the plurality of control parameters comprise first control parameters and second control parameters; a parameter adjustment part, setting whether to make the second control parameters, except the first control parameters of which the values are changed in the test actions, among the plurality of control parameters (A, B, C, P', C' p, C' v) to change along with the first control parameters based on whether the second control parameters affect the first control parameters; and a performance index calculation part, working out performance indexes of the control of the motor control device according to a result of the test actions; the setting support device being characterized in further comprising: a display control part, controlling display by correlating the performance indexes worked out by the performance index calculation part with the values of the first control parameters, wherein the display control part controls the display of relational graphs, wherein the relational graphs represent the relations between values of the performance indexes and the m types of first control parameters; and when the performance indexes are correlated with the n types of first control parameters, the display control part controls the simultaneous or selective display of relational graphs for each of m combinations selected from n combinations, wherein m is an integer greater than 2, and n is an integer meeting n ≧ m. a test action instruction part, changing at least one value among the plurality of control parameters (A, B, C, P', C' p, C' v), so as to enable the motor control device to actually control multiple test actions, or controlling multiple test actions by utilizing the simulation of a hypothetical model of the motor control device, wherein the plurality of control parameters comprise first control parameters and second control parameters; a parameter adjustment part, setting whether to make the second control parameters, except the first control parameters of which the values are changed in the test actions, among the plurality of control parameters (A, B, C, P', C' p, C' v) to change along with the first control parameters based on whether the second control parameters affect the first control parameters; and a performance index calculation part, working out performance indexes of the control of the motor control device according to a result of the test actions; the setting support device being characterized in further comprising: a display control part, controlling display by correlating the performance indexes worked out by the performance index calculation part with the values of the first control parameters, wherein the display control part controls the display of relational graphs, wherein the relational graphs represent the relations between values of the performance indexes and the m types of first control parameters; and when the performance indexes are correlated with the n types of first control parameters, the display control part controls the simultaneous or selective display of relational graphs for each of m combinations selected from n combinations, wherein m is an integer greater than 2, and n is an integer meeting n ≧ m. a display control part, controlling display by correlating the performance indexes worked out by the performance index calculation part with the values of the first control parameters, wherein the display control part controls the display of relational graphs, wherein the relational graphs represent the relations between values of the performance indexes and the m types of first control parameters; and when the performance indexes are correlated with the n types of first control parameters, the display control part controls the simultaneous or selective display of relational graphs for each of m combinations selected from n combinations, wherein m is an integer greater than 2, and n is an integer meeting n ≧ m.