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In confrontation with serious and fundamental problems towards ultimatetheory of quantum gravity and physics of Planck scale, we emphasize theimportance of underlying noncommutative space-time such as Snyder's or Yang'sLorentz-covariant quantized space-time. The background of Bekenstein-Hawking'sArea-entropy law and Holographic principle is now substantially understood interms of {\it Kinematical} Holographic Relation [KHR], which holds in Yang'squantized space-time as the result of the kinematical reduction of spatialdegrees of freedom caused by its own nature of noncommutative geometry. [KHR]implies a definite proportional relation, $ n^L_{\rm dof} (V_d^L)= {\cal A}(V_d^L) / G_d$, between the number of spatial degrees of freedom $n^L_{\rm dof}(V_d^L)$ inside of any $d-$dimensional spherical volume $V_d^L$ with radius $L$ and its boundary area ${\cal A} (V_d^L).$ It yields a substantial basis forour new area-entropy law of black holes and further enables us to connect "TheFirst Law of Black Hole Mechanics" with "The Thermodynamics of Black Holes,"towards our final goal: {\it Statistical} and {\it substantial} understandingof area-entropy law of black holes under a novel concept of noncommutativequantized space-time.

Where Does Black Hole Entropy Lie? Some Remarks on Area-Entropy Law, Holographic Principle and Noncommutative Space-Time