Abstract: If the 10kV cable fails in use, it will seriously affect the user's electricity experience.The causes of 10kV cable fault mainly include: line temperature rise, insufficient sensitivity of overcurrent protection, perforation of cable outer sheath, cable damage by external force, open circuit and grounding fault.Put forward corresponding solutions according to different faults, mainly including: strengthening power load and temperature monitoring, cable insulation detection and corrosion monitoring, 10kV cable laying quality acceptance, etc.