In Tamangapa landfill, the cattle consume organic waste as the feed which is susceptible to be contaminated by Pb metal. When the feed is consumed, Pb metal accumulated in the body cattle, it can be endanger the health of the cattle even the people who consume the meat. This study was aimed to measure and examine the content of Pb metal in the cattle which grazed inside and outside the landfill. This study materials included organic feed, leachate water, blood and feces from five cattle that grazed inside and outside the landfill, as samples. Pb metal testing to the samples was performed by using Atomic Absorption Spectrophotometric (SSA) method. The results of analyses described as follows: (a) in the waste feed was found the Pb metal contents are 0.99ppm and 0.16ppm inside and outside the landfill, respectively. (b) in blood cattle were 2.75 ppm and 1.98 ppm for grazing inside and outside the landfill, respectively. It should be notable that in both places, the Pb metal content in the blood cattle exceed the standard value 0.1 ppm. (c) In.feces cattle was 2.014 ppm and 1.27 ppm for the cattle that grazed inside and outside the landfill, respectively. the was no difference of the Pb metal level in the blood cattle, however, the difference of the average of Pb metal content in beef feces cattle has been found. Thus, it is concluded that the organic waste in the Tamangapa landfill is feasible as cattle feed but leachate water which as a source of drinking water is not feasible to consume by the cattle. Pb metal contenton blood cattlegrazed inside and outside the landfill is differ respectively, However, the Pb contenton feces cattle in inside the landfill is higher than outside the landfill.