The invention provides a network flow pure sinusoidal drive pulse frequency-modulated and width-modulated single-phase AC-DC conversion circuit, wherein a power circuit is used for completing single-phase AC-DC power conversion; a control circuit is used for completing instantaneous detection and AD conversion on output voltage and power network voltage, performing analogue operation, digital operation and logical processing according to a voltage outer-loop control principle to obtain the corrected duty ratio and the modulated switching frequency and form PWM drive pulse, and controlling theswitching state of a power switch in the power circuit; therefore, when the power network voltage is distorted, the input current always keeps a sinusoidal waveform; and current inner-loop control isunnecessary. According to the network flow pure sinusoidal drive pulse frequency-modulated and width-modulated single-phase AC-DC conversion circuit provided by the invention, when the power network voltage is distorted, the input current always keeps sinusoidal single-phase AC-DC conversion; an inductor works in a DCM mode; the inductance value is low; and the network flow pure sinusoidal drive pulse frequency-modulated and width-modulated single-phase AC-DC conversion circuit has the characteristics of being simple to control, rapid to response and preventing power quality pollution, and canbe widely used in application occasions, such as vehicle-mounted or vehicle wired or wireless chargers and variable-frequency air conditioners.