text: COVID 19 related fear and depression of pregnant women and new mothers To explore factors associated with depression and COVID 19 related fear among pregnant women and new mothers A cross sectional survey was conducted in China from July 2020 to July 2021 A total of 3027 pregnant and new mothers were recruited Sociodemographic characteristics and the perceptions of the COVID 19 pandemic were collected The Patient Health Questionnaire 9 PHQ 9 and the Fear Scale was used to assess the depressive and fear level towards the COVID 19 pandemic respectively Approximately 17 2 of the participants had depression PHQ 9 10 In Hong Kong participants who perceived that they have increased knowledge to prevent infection were less likely to have depression adjusted odds ratio aOR 0 83 95 confidence interval CI 0 74 0 94 There was no association between perceived severity if infected and severity of spread and the depression level in our sample An inverse relationship was found between the COVID 19 related fear level and perceived knowledge to prevent infection Beta coefficient β 0 20 95 CI 0 38 to 0 02 Public health nurses need to promote accurate and up to date COVID 19 related information at clinical and community settings and implement effective screening for depression and fear symptoms to identify these high risk groups to improve womens psychological well being 