In a low-cost, safe and reliable preparation method of 9-fluorene methanol, sodium methoxide is used, which is economical, convenient to operate, and safe. The present invention uses ethyl formate to reduce the reaction system and save costs. The present invention changes paraformaldehyde. It is a formaldehyde aqueous solution, cost-saving and convenient operation. The preparation method of the present invention is simple, the production time is short, the production efficiency is high, the yield is high, and the production cost is low.
