A new resolution method for inverse Cauchy problems is persented. The propo
sed method is literative. It possess the advantage to not perturbe the prob
lem neither by an operator modification nor by introduction of an priori in
formation on the solution. The presentation is made on a model problem for
the Laplace's equation. Numerical simulations prove the method efficacy. (C
) Academie des sciences/Editions scientifiques et medicales Elsevier SAS.