裂变径迹年龄测定方法在地质学、考古学中已经广泛地得到了应用。本文着重讨论该方法目前存在的一些问题和今后发展的方向。 目前存在的问题主要有:1.~(238)U自发裂变的衰变常数值。目前已发表的~(238)U自发裂变衰变常数(λ_f)值约40个以上,在裂变径迹年龄测定中采用的λ_f值有两组:6.9×10~(-7)年~(-1)(或6.85×10~(-17)年~(-1),7.00×10~(-17)年~(-1))和8.4×10~(-17)年~(-1)。虽然大多数实验室采用前者,但仍有少部分实验室坚持采用后者。2.样品在 Fission track age determination method has been widely used in geology and archeology. This article focuses on some of the problems existing in the method and the future direction of development. The existing problems are: 1. ~ (238) U decay constant value of spontaneous fission. At present, there are about 40 spontaneous fission decay constants (λ_f) values ​​of ~ (238) U. There are two groups of λ_f values ​​used in fission track age determination: 6.9 × 10 -7 years -1 ) Or 6.85 × 10 ~ (-17) years -1, 7.00 × 10 ~ -17 years -1 and 8.4 × 10-17 years -1, respectively. Although most laboratories use the former, there are still a few laboratories insisting that the latter be adopted. Sample in