We have observed an anomalous 9~ deposition at the Meteorological Research Institute (MR1), Tsukuba, Japan during the fall of 1995. This anomalous 9~ deposition was confirmed by the re-analysis of the sample, the associated lowest 137Cs/9~ activity ratio and high r/s ratio, etc. We discuss the cause of this anomalous 9~ deposition and conclude that the anomalous 9~ may come from an accidental release of nuclear battery, etc,