The invention relates to equipment for preparing a molecular sieve, which comprises a tubular reactor, a gas-solid separator and an absorption column, wherein the tubular reactor comprises a first feeding hole, a discharging hole and a tube body, the first feeding hole and the discharging hole are respectively positioned at two end parts of the tube body, the tubular reactor is communicated with the gas-solid separator through the discharging hole, the upper part of the gas-solid separator is communicated with the absorption column, and the position where the gas-solid separator is connected with the discharging hole is lower than that where the gas-solid separator is connected with the absorption column. The equipment for preparing the molecular sieve, provided by the invention, can realize the continuous operation of the contact reaction of the molecular sieve and SiCl4, and can control the contact time of the molecular sieve and the SiCl4 through controlling the length of the tubular reactor and the flow speed of the carrier gas, thereby being capable of enabling the contact reaction of the molecular sieve with the SiCl4 to be fully carried out in the tubular reactor.