With the upgrading of residents’ consumption and the diversification of the consumption structure, China’s urban night-time tour economy has developed rapidly and become a new bright spot of urban development. As an important constituent part of urban night landscapes, the lighting industry is closely related to the development of nighttime tour economy. To further explore the influence of the lighting industry on urban night-time tour economy, the short-term and long-term cointegration relationship between the lighting industry and urban night-time tour economy was analysed by the cointegration test, and the causal relationship between the two was explored through the Granger causality test. The ADF unit root test revealed that the lighting industry and urban night-time tour belonged to second-order single integration; the Johansen cointegration test exhibited a co-integration relationship between the lighting industrial and urban night-time tour; the regression coefficient of the lighting industry (independent variable) was 0.788, showing a significance level of 0.01 (t=22.470, P=0.000<0.01); the error correction coefficient was –0.489, showing a significance level of 0.01 (t= –3.912, P=0.001<0.01). When the short-term fluctuation of the night-time tour economy deviated from the long-term equilibrium, the lighting industry would pull the night-time tour economy from an unbalanced state back to an equilibrium state with the adjustment power of –0.489. The lighting industry was only the one-way Granger result of urban night-time tour. The research results have important reference value for figuring out how China’s lighting industry can promote the development of urban night-time tour economy, guiding it to achieve high-quality development, and enhancing the strong support from the lighting industry for development of night-time tour economy.