  It is found that the measurement disturbance relation (MDR) determines the
strength of quantum correlation and hence is one of the essential facets of the
nature of quantum nonlocality. In reverse, the exact form of MDR may be
ascertained through measuring the correlation function. To this aim, an optical
experimental scheme is proposed. Moreover, by virtue of the correlation
function, we find that the quantum entanglement, the quantum non-locality, and
the uncertainty principle can be explicitly correlated.
