Educational sector has been badly affected due to Covid-19 pandemic. The school library was closed because of that. Ganesha Library in Senior High School 1 Jetis Bantul used Instagram as a service platform during covid-19 pandemic. This research aims to find out what is the user perception about the quality of Instagram’s Librarian service during Covid-19 pandemic at Ganesha Library in Senior High School 1 Jetis Bantul. This research uses a descriptive quantitative approach. Besides, the researcher also uses purposive sampling. For collecting the data the researcher applies the questionnaire, observation, and documentation technique. Moreover, the researcher uses the mean and grand mean formula as a data analysis technique and it is also measured with service dimensions (Servqual). After analyzing the data, the researcher concludes that the user perceptions about the quality of Instagram’s online service during Covid-19 pandemic at Ganesha Library in Senior High School 1 Jetis Bantul is good enough. It is because the result from the grand mean is 3,12 on a scale of 2,51-3,15 interval and it can be categorized as good. The researcher hopes that Ganesha Library could maintain and increase Instagram's online service quality
