This study investigates the effectiveness of online learning amidst the covid-19 pandemic. It was done at the Postgraduate Program of Universitas Kristen Indonesia and conducted in the odd semester of the 2020/2021 academic year. This study was a quantitative descriptive study using a survey method conducted online. Data collection in this study was carried out by distributing questionnaires that consisted of 24 statements created on google form and submitted online to 148 respondents. The results of the study are that: a) student participation in online learning at the UKI Postgraduate Program is in a good category; b) the application used in online learning at UKI is dominated by the use of the Microsoft Teams application; c) the condition of network quality during online learning is at good category; d) the quality of the material provided by the lecturer during online learning is in a good category; e) the availability of discussion time between lecturers and students during online learning is at a poor category; and the last f) the opinion of respondents for the implementation of learning in the next semester, namely students are more likely to choose the teaching and learning process to be done through blended learning.