Solar portable power supply, also known as compatible solar mobile power supply, includes: solar panel, charge controller, discharge controller, mains charge controller, inverter, external expansion interface and battery, etc. The photovoltaic portable power supply can work in two modes of solar power and ordinary power, and can switch automatically. Photovoltaic portable power sources are widely used, and are ideal power supply equipment for emergency disaster relief, tourism, military, geological exploration, archaeology, schools, hospitals, banks, gas stations, comprehensive buildings, highways, substations, family camping and other field activities or emergency power supply equipment.