The paper discussed three aspects of platen drying sliced veneers from small diameter logs of two species( Betula platyphylla,Quercus mongolica ):(1)the influence of platen drying upon the warp of the veneers;(2)the relation between platen drying parameters(include their interactions)and final MC as well as thickness losses of the experimental materials,and a regression equations were established;(3)the platen drying parameters of the veneers were optimized according to testing microcosmic structure of the veneers via scanning electron microscope.