For matching the high energy excitation by the low voltage electron beams, the phosphors with stable crystal structure and high energy level excitation band is necessary. In this work, it is interesting to find a suitable phosphor of Na2TiGeO5 with self-light emitting property. The tight crystal structure of Na2TiGeO5 formed by edge-shared NaO6 and TO5 polyhedrons corresponds to its good thermal stability and degradation resistance property. The results indicate that the PL and CL intensity can still remain beyond 80% and 90% at 150 degrees C and after 1 hour electron beams bombardment, respectively. Under the 254 nm excitation, the bright blue light peaked at 460 nm can be detected and the light control has been realized with the Cr3+ doped, which changes blue light to cyan light. The high energy excitation is attributed to the charge transfer band (CTB) of Ti4+-O2-, which matches the electron beams. The bright CL emission light centered at 450 nm with good degradation resistance property has been detected. The results indicate its potential application in field emission display (FED)s.