The invention relates to a method for preparing camphor through continuous dehydrogenation of isoborneol.In the camphor synthetizing industry at present, the step of preparing camphor through dehydrogenation of isoborneol is critical.The method for preparing camphor through isoborneol overcomes the defects that the conversion rate is low, products are difficultly purified, a catalyst is likely to be inactivated, and hydrogen cannot be recycled due to batch operation.By adopting continuous operation, the camphor yield is high, and obtained hydrogen can be recycled; due to tubular reactors connected in series, the reaction temperature and pressure are controllable, materials are subjected to a reaction on the liquid phase condition, the conversion rate of the reversible reaction is increased, the product purification difficulty is lowered, the catalysis efficiency of the selected catalyst is high on the condition, the service life is long, the product is reproducible, and defects existing in original technologies are overcome to a large extent.