Abstract: A myocardiac infraction imaging reagent, 99 Tc\+m glucarate is injected into lung cancer of mice model to imaging. The primary results show that the tumor can uptake rather more 99 Tc m\|glucarate than the others. The uptake of 99 Tc m\|glucarate in tumor is the highest at 6 hours after injection. Evidently, the 99 Tc m\|glucarate is a hopeful tumor reagent.