Family planning (KB) is an effort to delay and space out pregnancies by using contraception aimed at creating a prosperous family. The Covid-19 pandemic that has hit the world today has had a huge impact on various sectors of people's lives, one of which is the Health and Family Planning Services sector. Even though during this pandemic, contraception is very much needed along with the increasing intensity of the closeness of husband and wife during the period of independent isolation House. The purpose of this study was to determine the factors that influence the participation of new family planning acceptors during the Covid-19 pandemic in Keret Village, Krembung District, Sidoarjo Regency. The research design uses quantitative studies. The population in this study were all new family planning acceptors in Keret Village, Krembung District, Sidoarjo Regency as many as 53 people. Sampling technique using purposive sampling. The sample in this study were 47 respondents. The research instrument used a modified questionnaire from Titik Wijayanti's research. Data analysis method using Linear Regression Test. The results of the test using SPSS 15.0 statistical linear regression test obtained p=0.076 on the age variable, p=0.001 on the variable length of marriage, p=0.000 on the variable type of contraception, p=0.382 on the education variable, p=0.326 on the income variable, p=0.437 on the knowledge level variable and p=0.187 on the number of children variable which means that among all variables, length of marriage and selection type of contraception has the most significant correlation with family planning participation.