The present disclosure provides a distributed phase-shifting transforming apparatus, including N transformer rectifier units, where each transformer rectifier unit includes two three-phase three-winding transformers and four rectifier circuits, each three-phase three-winding transformer includes first windings on the primary side and second windings and third windings on the secondary side, AC power output by the second windings and the third windings on the secondary side is output after being rectified by the rectifier circuits. Each transformer rectifier unit is configured such that: one set of the two first windings on the primary side and the two second windings on the secondary side is phase-shifted by 150 from each other, and the other set has the same phase angle; and the second windings and the third windings of each three-phase three-winding transformer are phase-shifted by 300 from each other. If N is greater than or equal to 2, the phase angle of the two first windings of the Nth transformer rectifier unit can be obtained by respectively phase-shifting the phase angle of the two first windings of the (N−1)th transformer rectifier unit by 15°/N. The distributed phase-shifting transforming apparatus has the advantages of small current harmonic distortion, simple process, low cost, high stability, and easy large-scale expansion.