In this paper, the detectability of the transient electromagnetic (TEM) method to multiple anomalous bodies with different locations and buried depths in the stratum was detailed discussed. The results of these models illustrate that the detectability of TEM to those bodies buried shallower is quite good no matter whatever their distance from the source, which also gives a further theoretical basis to the idea that TEM method can be used in the shallow target exploration. The detectability is the poorest when the multiple thin bodies are arranged vertically. When those anomalous bodies which have different locations and depths are horizontally arranged along the measurement line, those bodies with shallower depths and the one which is nearest to the source can be most easily detected by TEM method, while the bodies between them are always neglected if their sizes are too small or depth are too large. In general, the detectability of TEM to multiple bodies is much better to those arranged horizontally than those arranged vertically.