The mesh transformation method is applied on a two dimensional elastic crystal model to study the formation of laminated microstructure in austenitemartensite phase transition when certain external loads are applied. Numerical experiments show that simple laminated microstructures with various volume fractions and twin width can be obtained by varying the loads. Numerical experiments also show that second order laminated microstructure with branched peedle-like laminates can also be obtained by oertain loads.