The invention discloses a beach sand shaking table concentrate high efficiency dehydrating pre-drying continuous production system, and a method. The system comprises a concentrate collecting pool used for collecting shaking table concentrate, a high-frequency vibrating screen, a filtering and pre-drying all-in-one machine, a conveying belt, a drying ore feeder, a hydrocyclone and a reuse water pool; the filtering and pre-drying all-in-one machine comprises a horizontal vacuum belt filter, an air entraining cover and a standby heat source generator; the horizontal vacuum belt filter is connected with the drying ore feeder through the conveying belt; the drying ore feeder is connected with a drying machine; and the drying machine is connected with the horizontal vacuum belt filter so that tail gas of the drying machine can flow back to a filter belt of the horizontal vacuum belt filter. Pre-drying, dewatering and filtering procedures are designed to be continuously carried out or partially overlapped, tail gas waste heat of an existing single-cylinder dryer of enterprises is fully utilized, tail gas is introduced into the horizontal vacuum filter to be pre-dried, the moisture content of filter residues can reach 6% or below, the dewatering efficiency is effectively improved, the production cost and energy consumption are reduced, and the in-plant environment quality is improved.