A fast locking frequency locking ring with an automatic frequency control circuit comprises the automatic frequency control circuit and a frequency locking loop. The frequency locking loop comprises an amplifier, a first switch, a second switch, a voltage-controlled oscillator, a buffer, a frequency divider N and a frequency and voltage converter. The automatic frequency control circuit comprises a voltage comparator and a logic control circuit. At the beginning, the logic control circuit outputs an enabling signal to control the first switch to be turned off and the second switch to be turned on, the circuit is in the open loop state, the frequency locking ring carries out rough frequency selecting, increase and decrease of the number of logic output control words are controlled according to the output m of the voltage comparator to select an appropriate sub-band, the frequency locking ring carries out fine frequency selecting, the logical control circuit outputs the enabling signal to control the first switch to be turned on and the second switch to be turned off, the circuit is in the closed loop state, the frequency locking loop finishes the target frequency locking according to a signal input into the amplifier, and the fast locking frequency locking ring has the advantage of being fast in locking due to the work mode.