The invention relates to a preparation method of hollow monofilament three-dimensional fabric. The method comprises the following steps: 1) weaving: selecting CVS blended yarns and hollow monofilaments to weave gray cloth of the fabric; (2) pre-shaping: pre-shaping the gray cloth of the fabric; (3) dyeing: dyeing the pre-shaped gray cloth of the fabric; (4) softening arrangement: performing softening arrangement on the dyed gray cloth of the fabric; (5) wrinkle-resisting arrangement: performing wrinkle-resisting arrangement on the gray cloth of the fabric which is subjected to the softening arrangement; (6) secondary shaping: performing secondary shaping on the gray cloth of the fabric which is subjected to the wrinkle-resisting arrangement in order to acquire the fabric, wherein the CVS blended yarns are CVS staple fibre yarns. The method enjoys the following advantages: hollow polyester monofilaments are selected such that the monofilaments can be adjusted on a jacquard machine; dueto the reasonable proportion of hollow polyester monofilaments and yarns, brusting of monofilament jacquard fabric is avoided; during a post-processing process, a heat-preserving thermal-insulating auxiliary agent is added in order to ensure that the fabric has a high heat-preserving thermal-insulating function.