To provide a photovoltaic power collecting cable having good appearance in which so-called whitening due to rubbing or the like can be eliminated while satisfying the physical properties (elongation, tensile strength, residual ratio of elongation and residual ratio of tensile strength after aging), heat deformability and flame resistance required for an covering according to the PSE standard.

The photovoltaic power collecting cable 1 has a conductor 10 coated with an insulation layer of two-layer structure having an outside insulation layer 30 and an inside insulation layer 20 composed of polyethylene. The outside insulation layer 30 contains synthetic magnesium hydroxide (A) and a base resin (B) in a mass ratio (A)/(B) of 1 to 1.6, the base resin contains polyolefin-based resin (C) and styrene-based plastic elastomer (D) in a mass ratio (C)/(D) of 70/30 to 90/10, and the polyolefin-based resin contains polypropylene-based resin (E) and ethylene-ethyl acrylate copolymer (F) in a mass ratio (E)/(F) of 2/6 to 3/5.