Widely used inversion for TEM at present is based on the “Smoke Rings” theory which was referred to as “Smoke Rings inversion”.It was first proposed by M.N.Nabighian.According to M.N.Nabighian’s theory,Jiang Bangyuan presents a simple and fast approximate inversion method.This thesis trys to complete a TEM inversion software based on Jiang Bangyuan’s theory.This software is suitable to the preliminary interpretation on field exploration because of this simplified “Smoke Rings” theory of inversion with a simple calculation and do not need the initial models.