It is usually assumed that the concentration of the nuclide (inherited nuclide) in the sample is zero before the last exposure, during the process of the In situ terrestrial cosmogenic nuclides (TCN) exposure dating. However, a large number of dating data studies have found that the results of the exposure ages of the samples will be affected by the inherited nuclides and overestimate the real age of the landform. Therefore, It is very important to reduce the influence of inherited nuclides on the exposure ages or quantitatively analyze the influence degree of inherited nuclides. It can not only provide accurate chronological data for geomorphological evolution, but also have important significance for the study of TCN exposure dating method. Therefore, this paper takes the application of the TCN exposure dating method in glacial geomorphology as an example to explore the quantitative analysis method of the effect of inherited nuclides on exposure ages based on the inherited nuclides literature and the principle of the TCN exposure dating method. The results show that: ① It is possible to preliminarily determine whether the dating results are affected by inherited nuclides by the ratio of 26 Al/ 10 Be concentration in the sample and the distribution of the ages of multiple samples at the same group; ② Quantitative analysis of the effects of inherited nuclides on exposure ages through the concentration of cosmogenic nuclides in modern glacier area; ③ the effect of inherited nuclides can be reduced by calculating the difference of the cosmogenic nuclides concentration in the top of the moraine and at a certain depth (>2~3 m). This study is of great significance for the exposure and dating of glacial geomorphology.