A system for resolving exposure of aiming beams of a scanning head comprises a control circuit (1) of an aiming lamp. The control circuit (1) of an aiming lamp consists of five pin ends. A first pin and a second pin are input ends of an AND gate circuit, a fourth pin being an output end of a NOT gate circuit, a high level Vcc is introduced to a fifth pin of the control circuit (1), and a third pin of the control circuit (1) is grounded. The first pin and the second pin of the control circuit (1) are respectively connected to a scanning signal (SCAN_ENABLE) and a field synchronization signal (vsync), and the field synchronization signal (vsync) is connected to a resistor R1 and grounded. Compared with the existing scanning head on the market, the scanning head can completely eliminate local over-exposure of aiming beams, the decoding precision, the stability, the recognition rate and the decoding speed of the scanning head are greatly improved, and the power consumption of the scanning head is greatly reduced, and the implementation is easy and costs are low.