More and more people over-rely on social software, which causes anxiety due to their failure to check work information in time. However, this type of scale has not been developed yet. The objective of this study was to develop a measurement tool for early childhood teachers’ fear of missing out on work information and verify its reliability and validity. Based on the Fear of Missing Out Scale developed by Przybylski et al. this paper with the methods of interview and Delphi investigation, re-developed the Fear of Missing Out Scale for early childhood teachers’ work information. The exploratory factor analysis showed that the scale was divided into two dimensions, and the confirmatory factor analysis data showed that the scale had good convergent validity. The retest results of the scale showed that the scale had high stability. The reliability and validity of the questionnaire were in line with the requirements of measurement, and it was an effective measurement tool for evaluating early childhood teachers’ fear of missing out on work information. Taking 270 early childhood teachers in Guangzhou as the subjects, the data showed that the fear of missing out on work information of early childhood teachers in Guangzhou was at a moderate level. The teacher’s teaching grade had no significant impact on the early childhood teachers’ fear of missing out on work information, but teaching experience had a significant negative impact on the fear of missing out on work information.