The invention relates to the technical field of production methods of hard wood sheets, in particular to a production method of hard wood sheets in a two-sandwich structure, which comprises the following steps: softening wood sheets in a panel layer, flattening and dehumidifying the wood sheets in the panel layer, sending the wood sheets in the panel layer into a sheet dehumidifying room, controlling the water content of the wood sheets in the panel layer at 6-8% by the sheet dehumidifying room, processing the wood sheets in the panel layer in an accurate cutting mode to obtain standby materials with the required dimensions according to the requirements, and finally processing the wood sheets in the panel layer in a press-in mode so as to finish the production of the hard wood sheets in atwo-sandwich structure. The hard wood sheets in a two-sandwich structure, which are produced by the production method, can solve the problem of easy cracking of natural hard wood sheets so as to greatly reduce the fraction defective and increase the value of furniture products.