We investigate multi-layered thermal nanoimprint to fabricate 3D-structure. In multi-layered imprinting, the relation between imprint condition and fabricated structure has not been discussed experimentally. In this report, we discuss simple bi-layer imprint experimentally. Bi-layer PMMA resist coated two type molecular weight polymers is pressed in some conditions and observed cross-sectional images. As a result, imprinted structure is affected pressure force and pattern width.