The invention discloses a solar air conditioner system having functions of charging and power supply lightning protection. The solar air conditioner system comprises a solar cell, a solar controller, a storage battery and a variable frequency air conditioner, wherein the solar controller comprises a charging circuit, a control circuit, a lightning protection circuit and a discharging circuit, the variable frequency air conditioner comprises an inversion circuit, the charging circuit comprises a twenty-first diode, a twenty-second diode, a twenty-third light emitting diode, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-first thermistor, a twenty-second thermistor, a twenty-first triode, a twenty-first capacitor, a twenty-second capacitor and a twenty-first charging management chip, and the lightning protection circuit comprises a sixty-first resistor, a sixty-second resistor, a sixty-first thermistor, a sixty-second thermistor, a sixty-third thermistor, a sixty-one fuse, a sixty-second fuse, a sixty-third fuse, a sixty-fourth fuse and a gas discharging tube. By the solar air conditioner system, lightning can be effectively prevented, the safety performance of the system is improved, the system is convenient to install and is relatively low in cost and relatively high in reliability, a lightning surge applied to an air conditioner can be absorbed, and the air conditioner is prevented from being damaged by the lightning surge.