Thin blockboard and manufacturing method thereof

The invention relates to the field of thin blockboard manufacturing, in particular to a thin blockboard and a manufacturing method of the thin blockboard. The thin blockboard comprises a China fir core board layer in the middle, poplar single board layers which are respectively spliced on the upper surface of the China fir core board layer and the lower surface of the China fir core board layer, and Okoume single board layers which are respectively spliced on the outer surfaces of the poplar single board layers. Adjacent board layers are spliced according to the perpendicular direction of wood texture, and modified soya bean glue is adopted to splice adjacent board layers. The solid thin blockboard has high splicing strength and is low in formaldehyde release amount, and at the same time, has the advantages of being mould-proof, corrosion-proof, insect-proof and water-proof.