This study aims to investigate the effect of non-regular research workers' job
insecurity on work-life balance. This study attempted to investigate job insecurity on
the theoretical basis of the stress theory(cognitive appraisal theory). In other words,
the purpose of this study is to reconstruct of the job insecurity based on the
cognitive appraisal theory. Through the literature review, 3 factor that hypotheses of
employee's job insecurity has been defined as possibility of job loss, capability for
coping with job insecurity, affective job insecurity. Data were collected from 187
non-regular research workers from three government-donated research institute. The
data were analyzed by statistical package, SPSS 22.0 for Windows. To test hypothesis
multiple regression analysis were used. The results of this study are summarized as
follows. First, the effect of non-regular research workers' possibility of job
loss(pertains to perceived threats of impaired equality in the employment relationship,
such as deterioration of working conditions, lack of career opportunities and so on)
on affective job insecurity(refers to concern about the future existence of present
job) showed that possibility of job loss has a statistically significant positive effect on
affective job insecurity. Second, the effect of non-regular research workers' affective
job insecurity on the harmony of work-family showed that affective job insecurity
has a statistically significant negative effect on the harmony of work-family. Third,
the effect of non-regular research workers' affective job insecurity on the harmony
of work-growth showed that affective job insecurity has a statistically significant
positive effect on the harmony of work-growth.