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Moving force identification is a very important inverse problem in structural dynamics. Mostof the identification methods are eventually converted to a linear algebraic equation set. Diferent ways tosolve the equation set may lead to solutions with completely diferent levels of accuracy. Based on themeasured bending moment responses of the bridge made in laboratory, this paper presented the timedomain method (TDM) and frequency-time domain method (FTDM) for identifying the two moving wheelloads of a vehicle moving across a bridge. Directly calculating pseudo-inverse (PI) matrix and using thesingular value decomposition (SVD) technique are adopted as means for solving the over-determinedsystem equation in the TDM and FTDM. The effects of bridge and vehicle parameters on the TDM andFTDM are also investigated. Assessment results show that the SVD technique can effectively improveidentification accuracy when using the TDM and FTDM, particularly in the case of the FTDM. Thisimproved accuracy makes the TDM and FTDM more feasible and acceptable as methods for movingforce identification.