Work readiness is an essential factor needed by students to enter the workforce. This study aims to determine the effect of self-confidence and hardiness on students' work readiness. The population in this study were all students of Grade XII State Vocational High School 1 Seyegan, Sleman Yogyakarta. The sampling technique is cluster random sampling. The sample in this study consisted of 6 classes obtained randomly with 174 students in class XII. Data collection was conducted using several tools, namely the work readiness scale, the self-confidence scale, and the hardiness scale. The data analysis technique used in the study is multiple linear regression analysis. The results of the data analysis indicated a very significant effect of self-confidence and hardiness on work readiness, with an F value of 40.135 and a significance level (p) of .000. The higher the student's confidence and hardiness, the better the work readiness. Vice-versa, the lower the student's confidence and hardiness, the lower the work readiness. The role of self-confidence in work readiness is more dominant than hardiness.