Fishing line anti-falling mechanism

The utility model provides a fishing line anti-disengaging mechanism. The fishing line anti-disengaging mechanism comprises a main wheel driving assembly, a driving wheel, a main wheel shaft, a drivenwheel, a driven wheel shaft, a pressing bracket and a pressing spring. The main wheel shaft is fixedly installed in a shell of the buoy, the auxiliary wheel shaft is erected at the upper end of the pressing bracket, and the lower end of the pressing bracket is installed in the shell of the buoy through the pressing spring. The compression spring is always in a compressed state, the driving wheeland the driven wheel are compressed, and a space only allowing a fishing line to penetrate through is formed between the driving wheel and the driven wheel; the driving wheel is installed at the output end of the main wheel driving assembly, and the main wheel driving assembly drives the driving wheel to rotate actively around the main wheel shaft and drives the driven wheel to rotate passively around the driven wheel shaf