The invention relates to a silane crosslinked polyethylene insulated cable material, which is formed by mixing 100 weight portions of materials A and 2 to 3 weight portions of materials B, wherein, the materials A are mixed by ethenyl trimethoxy silane, tetra (beta-(3, 5-di-tertiary butyl 4-hydroxy benzene)monoprop) pentaerythritol ester, diisopropylbenzene peroxide, low density polyethylene and polyethylene, and the materials B are mixed by low density polyethylene, dibutyl zinc laurate and tetra (beta-(3, 5-di-tertiary butyl 4-hydroxy benzene)monoprop) pentaerythritol ester. The cable material is crosslinked in the air to reach the stated service performance rather than immersed in mild water and crosslinked after the production is finished; and the production period is short and the energy consumption is low.