The invention relates to a low-temperature resistant and anti-crack cabtyre flexible cable for the wind power generation and is characterized in that a plasticiser inside a rubber insulation and sheath is a low-temperature resistant plasticizer and is added with 2 to 5 portions of pine tar oil and/or cylinder oil and 3 to 8 portions of coupling agent; the pitch of flexible conductor strands is intertwisted by 8 to 14 times; in the situation of a multiple-core cable, the cable pitch of insulating core is 8 to 10 times. Compared with the prior art, the invention improves the flexility at a low temperature, the anti-crack performance, the mechanical performance at a low temperature and the torsibility of the cable of the rubber insulation and sheath and can satisfy the torsibility requirements of a wind energy cable. The cable of the invention is not cracked in an impact test at a low temperature of 40 DEG C below zero and a flexion test, can maintain the flexility at a very low temperature, satisfies the requirement of the cable used at a low temperature or a maritime climate environment, and can be applicable to the use in the environmental conditions of big difference in environmental temperature, salt mist, moist heat, mould fungus, etc. In addition, an environment-friendly auxiliary material is used and the cable insulation as well as the sheath environment are good; therefore, the invention can satisfy the environment-friendly requirements of PAH such as ROHS and RAHS of the EU.