The invention discloses a visible light communication-based information transmission method, a television and a storage device. The method comprises the steps of matching desired information accordingto currently played content or pre-fabricated content of the television, modulating the information and then loading the modulated information to a PWM controlling backlight of the television; superposing the PWM and a PWM of a backlight lamp strip of an original driver and outputting a new PWM signal, and driving a backlight circuit of the television to control information transmission; and acquiring backlight source content successfully by using a photosensitive device, then performing light source modulation so as to obtain dynamic PWM data and restoring the PWM data through digital-analogconversion so as to obtain original data information. According to the method, to-be-transmitted information is loaded to the PWM controlling the backlight of the television according to a certain frequency or duty cycle through optical modulation, information is transmitted along with the light emitted by the television, and the user acquires the visible light emitted by the television through the photosensitive device and eliminates optical wave through demodulation so as to obtain effective information.