WHO estimates that approximately 40 % of maternal death in developing countries areassociated with anemia in pregnancy. Anemia in pregnancy is often called a "potential danger tomother and child", there for requires serious attention of all relevant parties, especially in healthcare. Detection of cases of anemia in pregnancy has not been conducted in accordance with thestandard management of anemia in pregnancy. There for it is necessary to analyze the factorsthat affect the performance of midwives in the management of anemia in pregnancy inSingkawang. The general objective of the study to determine the factors that affect theperformance of midwives in the management of anemia in pregnancy in Singkawang. Typeanalytic approach Retrospective survey research. The study population is the entire area of thehealth center midwife Singkawang totaling 110 people. The sample as many as 52 people from 5 regions Singkawang Health Center. The independent variables of knowledge, infrastructure,leadership , motivation and communication. The dependent variable performance of midwives inthe management of anemia in pregnancy. Data were collected by interviews using a structuredquestionnaire and observation. Data analyisis using the Spearman rank and logistic regression.The results of the study the majority of midwives aged between 20-35 years (63.5 %), educationDIII/DIV/S1 Midwifery (90.4 %), service life ≥ 10 years (55.8 %). Performance categorizedeither midwives (59.6 %), good knowledge (51.9 %), the complete infrastructure (53.8 %), goodleadership (63.5 %), good motivation (55.8 %), good communication (53.8 %). Allindependentvariables (knowledge, infrastructure, leadership, motivation and communication) has a value ofρ< 0,05, which means there is a connection with the performance of midwives in themanagement of anemia in pregnancy. Results of multivariate analysis , the variables that affectthe performance of midwives in the management of anemia in pregnancy is knowledge (ρ=0.002)and leadership (ρ=0.006)