Sepsis in neonates is a very serious problem and contributes to morbidity and mortality among the newborns. Signs and symptoms of its infection are hardly detected early. They are only detected in a severe sepsis, increasing the death incidence. An effective early detection method is needed for early treatment and will prevent the mortality in neonates. This study used electronic databases of Pub Med, Science Direct, EBSCO Host, and Pro Quest. The articles taken are those issued in the last 5 years. Based on the review, there are several methods used to detect sepsis in neonates early. They are SNAP II, SNAPPE II, SRC (Sepsis Risk Calculator), NICE guideline CG49, and laboratory results (procalcitonin, CRP, NLR, PLR, thromboelastometry, interleukin-6). SNAP II and SNAPPE II scores are not significantly associated with blood culture results. SRC recommends blood culture examination in neonates with a moderate risk. Procalcitonin can predict neonate sepsis with a sensitivity of 73.6% and specificity of 38.6%, while CRP has a sensitivity of 50.9% and specificity of 28.7%. NLR and PLR have a sensitivity of 97.4%, and specificity of 100%. Interleukin-6 has greater potential to detect early onset sepsis (EOS) than late onset sepsis (LOS).