The invention provides a linen blend manufacturing process, comprising the following steps of using long linen flax fiber as raw materials, and subjecting long linen flax fiber to a hackling machine, hackling into long linen, subjecting to a strip forming machine, a zero drawing machine, a first drawing machine, a third drawing machine, a final drawing machine, a roving machine, a scouring and bleaching pot, a spinning machine, a dryer, and an automatic winder in sequence, and packaging of finished products. The linen blend manufacturing process is characterized in that the combed short linen flax fiber strips, which are combed and refined on a short linen flax fiber raw material production line, are added to a long linen spinning process; meanwhile, the pre-light bleaching and twice bleaching technology is adopted in the scouring and bleaching process; and the linen blended yarns spun produced by the linen blending manufacture process solve the long-standing problem that how the good short linen flax fibers hackled by the hackling machine return to the long linen flax fibers to be spun, thus not only reducing costs but also spinning high-quality linen blended products.