Evidence of historical,archaeological and palaeo-climatic records indicated that deluge occurred at early third millennium over the Mesopotamia.

The prediction of the "98.6" catastrophic flood process of Wuzhou of the Xijiang river;

The paper lists the existing problems and puts forward the treatment suggestions and the measures to be taken in accordance with the actual problems after hit by the catastrophic flood since the year 1988 in Nanning City as well as through the analysis of the present situations.

This theory and prediction method revealing the essence and crux of appearance about catastrophic flood have been successfully used many times, for Yellow River in 1967,1981 and 1982 and for Yangtze River in 1981,1996.

Review of extreme flood of August 2002 in Europe;

The waste water drainage strategy,experience and lessons in proper city of Jiamusi during 1998’s extreme flood were discussed.

Holocene extraordinary flood of Qinhe River and its recurrence interval;

This paper analyzed the disaster condition and the causes of the extraordinary flood on June 1994 in Xiangjiang valley.

The world maximum flood and its envelop curve formula are helpful for people to analyze and understand the regional distribution law of world flood extreme value,can provide an important scale for reasonable checking the flood frequency analysis and Probable Maximum Flood(PMF) results and provide convenience for PMF rough estimation of some regions where are short of storm/flood data.