Abstract: A new explanation of the broadening of NMR peaks of the solution with a few of paramagnetic ions and a lot of ligands is reported in the paper. The new points about the explanation have been proved true in the experiment. In the course of the prove, the value of 1/G_i or 1/T_2l have been calculated. Because 1/G_i or 1/T₂₁ gets rid of the effect of the exchange between ligands, the distance between paramagnetic ions and carbonic atoms of ligands can be caculaed with 1/G_i or 1/T₂₁ by means of S-B equation. So contiguration of the complexes can be gained.