The purpose of this study is to analyze the influence of skills and attitudes towards midwives professionalism at the Indonesian Midwives Association especially In Sidoarjo city. This study uses quantitative methods with 40 midwives in Sidoarjo Regency Branch as a subjects of this research. This data are from primary data collected by distributing questionnaires. The data analysis technique used was SEM analysis with the PLS program. The results indicate thatskill and attitude have a significant effect on Midwife Professionalism at the Indonesian Midwives Association. The influence of these two variables is positive so that the skill is better, and also can improve their professionalism.