Abstract: The thermal desorption was used to investigate the He release from titanium tritide films with He and Ti atom ratio n(He)/n(Ti) from 0.004 to 0.300. Below 1 300 K in helium desorption spectra there are four kinds of peaks that account for He bubbles punching up to the surface, the helium near the surface, He bubbles and He cluster. And the study was carried out for the changing of their peak temperature and desorption quantities with n(He)/n(Ti) in titanium tritide films, and the developing and changing of these helium states in lattice with n(He)/n(Ti) in titanium tritide films. It is proven the maximum ³He conserved quality on titanium tritide decreases with temperature increment.