The invention relates to a transient electromagnetic transmitter circuit with loads in parallel connection for discharging. The transient electromagnetic transmitter circuit comprises a DC power supply, an H bridge circuit, load coils, bidirectional switches, a load discharging loop and a constant-voltage clamping circuit, wherein the DC power supply is connected with the load coil N through the H bridge circuit, the load coil I, the bidirectional switch I, the load coil II, the bidirectional switch II...; the load coil I, the load coil II,...and the load coil N are each connected with the load discharging loop; and the load discharging loop is connected with the DC power supply through the constant-voltage clamping circuit. Compared with the prior art, by adopting the bidirectional switches and diodes, the load coils are in a series connection state when the current rises and is stable, and the load coils are in parallel connection state in discharging. The transient electromagnetic transmitter circuit effectively reduces equivalent inductance of the loads in discharging, reduces turn-off delay time of the transmitter, and reduces transient electromagnetic detection blind zone. The load coil segmentation method is flexible, and parallel load inductance value can be changed according to specific detection requirements. Under the condition of same turn-off delay time, the transmitting current or load coil number can be increased, the equivalent magnetic moment is enlarged, and the detection depth and resolution are increased.