The invention relates to a magnetic-levitation train levitation control device to be used for controlling an electromagnet of a magnetic-levitation train. The device comprises two electrically independent control units which are of the same structure. The control units comprise control circuits (C1, C2), gating power switches (K1, K2) used for being connected with the same electromagnet, power conversion circuits (P1, P2) and auxiliary power supplies (DC1, DC2), wherein the output ends of the power conversion circuits (P1, P2) are connected with the gating power switches (K1, K2), the output power of the power conversion circuits (P1, P2) is controlled by the control circuits (C1, C2) of the corresponding control units, and switching on and off of the gating power switches (K1, K2) are controlled by the control circuits (C1, C2) of the two control units at the same time. Compared with the prior art, the device has the advantages that due to the fact that the two-in-one levitation controller is adopted, the usability of the magnetic-levitation train is improved, the circuit structure is simplified, and a good comprehensive effect is realized.