China is one of the native origins of Pyrus. The history of pear cultivating has been thousands of years. New cultivars has been increasing by selection, breeding and tissue culture. 43 pear cultivars including 20 new pear hybrids and their parents were studied by fluorescent AFLP. A fingerprinting has been constructed. Relationship and inheritance between hybrids and parents have been analyzed and 20 new cultivars have been classified on molecular level. The purpose is to provide basis for pear classificat...