Characteristic of visible light spectrum was studied on titanium in ferroalloy by digital analysis system with grating spectroscope and prism spectroscope.The visible light spectrums of titanium and iron were simulated by computer and digital spectrums were shot by digital analysis system.The researches were made on characteristic of Ti499.95 nm,Ti551.25 nm and Ti489.99 nm line groups in ferroalloy.The analysis chart and intensity mark were obtained.The method was developed for spectroscopic analysis of titanium in ferroalloy.The research results can meet the requirements for qualitative analysis and semi-quantitative analysis on titanium in ferroalloy,can be used to exactly examine alloy and avoid the commixing of material on spot.