Visible light communication networks are one of the main components in the current communication field, but their physical devices (LED lighting devices) have nonlinear characteristics, resulting in nonlinear distortion of visible light communication network signals, which affects the quality of user communication. Therefore, an adaptive correction method for nonlinear distortion of visible light communication network signals is proposed. Through in-depth analysis, it can be concluded that signal nonlinear distortion is divided into nonlinear conversion distortion and nonlinear limiting distortion. Based on this, a signal nonlinear distortion correction circuit (DG pre distortion correction circuit and DP pre distortion correction circuit) is designed, and an adaptive algorithm is introduced to develop an adaptive correction architecture for signal nonlinear distortion. The adaptive correction formula for signal nonlinear distortion is determined, thus achieving effective correction of signal nonlinear distortion. The experimental data shows that there is no nonlinear distortion phenomenon in the adaptive correction results of signal nonlinear distortion obtained by applying the proposed method, and the minimum error rate of communication signal reception is 3%, fully confirming that the proposed method has better application performance.