The invention relates to a polyester-containing waste textile recycling technology, and belongs to the technical field of waste material recycling or processing. The polyester-containing waste textile recycling technology comprises the steps of cutting off, cleaning, drying, cutting and compacting and tackifying in sequence, wherein according to the cutting off step, waste filaments are carded with fingers of a cutting off machine and then cut off by a reciprocating cutter, after the waste filaments are cut into set length, cleaning and dewatering and drying are carried out in a fragment mode, the moisture content is controlled to be 0.5% or lower, and the waste filaments are fed into the compacting procedure, extruded, heated, plastified and then tackified. The polyester-containing waste textile recycling technology is applied to recycling of polyester products, and has the advantages that production is stable, multiple varieties of raw materials are used, the product quality is reliable, and energy consumption is low.