This study examines the differences in awareness and consumption levels related to digital consumption among pre-senior group, two early-senior groups(aged 60 to 64, and aged 65 to 69), and late-senior group, with the objective of identifying factors that affect digital consumption levels, such as information search and purchase(usage) behavior. The data from Korea Consumer Agency is used, and the main results are as follows. First, the levels of digital consumption are decreased significantly with the increase of age groups. Second, the levels of awareness - regarding to objective/subjective digital competency, the importance to adapting to digital consumption life, and usefulness of digital consumption - decreases with the increase in age groups. This shows that the elderly in their 70s are a vulnerable and marginalized group. Third, while objective/subjective digital competency significantly affect digital consumption levels - for both information search and purchase(usage) behavior - the impact of objective digital capabilities is particularly noticable. The awareness levels of the usefulness of digital consumption have a positive effect on information search on all age groups, with the exclusion of the pre-elderly group. The awareness levels of the usefulness of digital consumption have a positive effect on purchase(usage) behavior on all age groups, with the exclusion of the late-elderly group. Group-wise, the residential areas, income levels, and the awareness of the importance of adapting to digital consumption life, are found to be significant influencing factors in information search; income levels significant for purchase/usage.