Labor protection increases employees’ stability and strengthens their monitoring role, improving firms’ information environment and increasing analysts’ earnings forecast accuracy. Using the implementation of China’s Labor Contract Law as a quasi-natural experiment, we find that labor protection significantly improves analyst forecasts. This positive impact is stronger when agency problems are weaker, board independence is greater, corporate reputation is better and industry competition is more intense. Enhanced labor protection significantly reduces firms’ business risk and accrual-based earnings management, decreases stock price synchronicity and increases market pricing efficiency. Our findings of significant impacts of China’s Labor Contract Law on analysts’ forecasting behaviors offer important guidance for promoting the development of the Chinese capital market and policy making in labor protection.