文章首先将史瓦西黑洞场中自由下落质点的固有时(诺维科夫坐标时)公式，由自然单位制化成了国际单位制中的形式.然后，根据牛顿第二定律和万有引力定律，推导出了自由下落质点经历的绝对时间公式，进而证明了广义相对论中自由落体经历的固有时，恰好等于牛顿力学给出的绝对时间.最后，对自由下落质点在黑洞内外经历的时间进行了特例计算.

This paper firstly transforms the proper time (Novikov coordinate time)formula of the free-falling particle in the Schwarzschild black hole field from the form in the natural unit system to the form in the international system of units. Then，according to Newton's second law and the law of universal gravitation，the absolute time formula experienced by the free-falling particles is derived，which proves that the proper time of free-falling particle in general relativity is exactly equal to the absolute time given by Newtonian mechanics. Finally，a special case is calculated for the time that free-falling particle experience inside and outside the black hole.