The invention relates to a satisfaction evaluation system of highway toll service, in particular to a lamplight modulation satisfaction evaluation system, matched with highway toll stations, of the highway toll station service. The hardware of the lamplight modulation service satisfaction evaluation system is composed of a first ground sensing coil, a second ground sensing coil, a third ground sensing coil, a single chip microcomputer control plate, a voice amplifier circuit board, a lamplight recognizer, a light emitting diode (LED) display screen, a horn and automatic handrails. The lamplight modulation satisfaction evaluation system is characterized in that the lamplight recognizer is used for receiving evaluation information, and has the advantages of being civilized and efficient, guaranteeing active and polite greetings when vehicles come, and being efficient in toll charging in a timing mode. The satisfaction evaluation system is simple, and convenient and quick to operate, can quickly release vehicles, says goodbye to the vehicles, and improves passing efficiency in highways.