The invention relates to the technical field of daily chemicals, in particular to an antibacterial linen detergent which comprises a surfactant, a builder, a unique composite antibacterial
system and a composite biological
enzyme preparation. The composite antibacterial
system is formed by compounding a double-chain
quaternary ammonium salt, a
guanidine polymer and a
plant-source antibacterial synergist according to a specific proportion, the composite antibacterial
system and a biological
enzyme preparation containing
protease,
lipase,
amylase and
cellulase generate a synergistic effect, and through a mechanism of first enzymolysis cleaning and then multi-target synergistic sterilization, the composite antibacterial system can be used for preparing a multi-target
antibacterial agent under the low-temperature condition of 40-60 DEG C; the efficient decontamination on the linen and the broad-spectrum and lasting killing on
bacteria and fungi can be realized, and the
drug resistance risk of microorganisms is obviously reduced. The product does not contain a
chlorine bleaching agent, is environment-friendly and safe, has small damage to fabrics, and is particularly suitable for hygienic washing of linen in the industries of hotels, hospitals and the like.