The acquisition of grammar from a corpus is a challenging task in the preparation of a knowledge bank. In this paper, we discuss the extraction of Chinese grammar oriented to a restricted corpus. First, probabilistic context-free grammars (PCFG) are extracted automatically from the Penn Chinese Treebank and are regarded as the baseline rules. Then a corpusoriented grammar is developed by adding specific information including head information from the restricted corpus. Then, we describe the peculiarities and ambiguities, particularly between the phrases “PP” and “VP” in the extracted grammar. Finally, the parsing results of the utterances are used to evaluate the extracted grammar.