The invention relates to the technical field of network cable sealing, in particular to a network cable sealing method, which comprises the following steps: S1, pre-sleeving a first heat shrink tube on a network cable; s2, stripping the outer sheath to
expose the shielding layer and the core wire harness; s3, stripping the insulating layer of each core wire, wherein the conductor exposed section of each core wire is distributed in a step shape; s4, sleeving a second heat shrink tube on the core wire harness, and injecting a
sealant; s5, performing
thermal shrinkage on the second
thermal shrinkage tube, and arranging the folded shielding layer to enable the shielding layer to wrap the periphery of the first sealing layer; s6, crimping the core wire harness and the
crystal head; s7, the first heat shrink tube is pushed to the wrapped shielding layer area, and
sealant is injected; and S8, performing
thermal shrinkage on the first thermal shrinkage tube to enable the core wire harness in the network cable and the shielding layer to have no
relative displacement. The cable has the advantages that the conductor exposed sections of the core wires are distributed in a stepped staggered mode in the axial direction, it is guaranteed that the core wires can make full contact with
sealant to achieve the insulation effect when the sealant is injected subsequently, and it is also guaranteed that the core wires make contact with one another, and
short circuit is avoided.