Riding mower with safety circuit protection measures

The invention relates a riding mower with safety circuit protection measures, in particular to a riding mower with additionally-set safety circuit protection measures, noise reducing measures and hydraulic stepless speed change. The safety circuit mainly comprises a single board computer, a plurality of instrument plug-in units, buzzers, fuses, headlamps, a seat switch, a hung grass collecting box switch and a grass-filled alarm switch, wherein the headlamps are formed by combining a plurality of light emitting diodes in parallel; the plurality of light emitting diodes are arranged along the arc sector surfaces so as to benefit the enlarge of visual angle; the seat switch (S3) is unconventionally designed by adopting a new concept without being suddenly connected or broken; when people leave from the seat, the new seat switch can be immediately broken off; the seat switch (S3) mainly comprises a long sliding bar (S3-1) and a carbon brush (S3-2) of a guide rail matched with the long sliding bar; and several buzzers for alarming are arranged so as to obtain the expected safety effect.