A new three-dimensinal shape measurement method is proposed based on b idimensional statistical empirical mode decomposition (BSEMD).When constructing two-dimensional upper an d lower envelopes, BSEMD uses a smoothing process instead of an interpolation.The BSEMD method has better noise inhibition performance than conventional BEMD method because of the smoothing sifting procedure.After the d eformation fringe of structured light is decomposed by BSEMD,the useful fundamental components inclu ding measured object′s height information can be obtained by removing the background components.And th en we can obtain the modulated phase distribution by Hilbert transform.The height of measured object can be retrieved by mapping the phase and height.The simulations and experim ents prove the validity of this method.