The embodiments of the invention disclose an optical coupler feedback LED (light emitting diode) driving circuit and LED illuminating equipment. The circuit comprises a chip U1, an input protection circuit, a feedback circuit, a tank circuit, a filter circuit, an overvoltage protection circuit and a voltage stabilizing circuit, wherein the input protection circuit is connected with the chip U1 for adjusting input voltage; the feedback circuit is connected with the chip U1 for providing feedback to the chip U1 and outputting stable voltage; the tank circuit is connected with the chip U1 for storing electric energy; the filter circuit is connected with the tank circuit for filtering; the overvoltage protection circuit is connected with the tank circuit for maintaining to output stable voltage when the feedback circuit is failed; the voltage stabilizing circuit is connected with the tank circuit and used for stabilizing voltage. The circuit disclosed by the embodiments of the invention can provide stable direct-current voltage for an LED without a transformer, the voltage range is applicable for world wide voltage (after 85VAC-265VAC rectification); the circuit is simple in structure, low in failure rate and low in cost.