The measurement of metal electron escape work is equivalent to determining electron potentiaenergy, which is of great significance for understanding the microscopic atomic structure , especially formodifying the relevant nuclear structure theory and calculation methods.The process of escape work experimentskillfully combines the relationship between various energy levels of metal tungsten crystal cells.lt flexibly usesthe characteristics of linear fitting to simplify the data relationship, which plays a guiding role in the study ofmodern physics experiments. Because of the differences in the escape work measured by differentexperimenters,the escape work is likely related to the crystal plane of tungsten used in the experiment.Therefore ,based on the first principle , the electron escape work of tungsten with different crystal planes canalso be calculated directly.We will compare the metal electron escape work obtained by experimental operationand first-principles calculation, and intuitively analyze the influence of different crvstals on metal electronescape work to provide new ideas and ways to study physical experiments.