Audit of internal control started late. Congress in The
United States organized COSO composed by five subsidiary
groups of NCFR, revised their report released in 1992, and
promulgated the report of "Internal Control - the overall
framework" .in the implementation and application of COSO
report, the branch of internal audit in American Enterprises
started audit on internal control and promoted
implementation and development of the internal control audit.
In the 1990s, as Chinese market economy gradually
improved, the scale of operation and subliminal level of
capital gradually raised, capital ownership and the right of
operation further isolated, the importance of internal control
has become increasingly prominent.