OBJECTIVE:　We　aimed　to　examine　the　prenatal　clinical　characteristics　of　women　with　single　pregnancies　undergoing　external　cephalic　version　(ECV)　without　anesthesia,　develop　a　novel　scoring　system　for　predicting　the　ECV　success　rate,　and　demonstrate　that　this　scoring　system　can　be　used　to　individualize　the　timing　of　ECV　attempts.　PATIENTS　AND　METHODS:　We　enrolled　270　women　who　underwent　ECV　without　anesthesia　at　37-40　weeks　of　gestation　in　the　Fujian　Maternity　and　Child　Health　Hospital　from　2016　to　2019　and　divided　them　into　two　ECV　outcome　groups　(success　vs.　failure).　We　identified　five　clinical　features　(the　fetal　buttocks＇　station,　the　sum　of　the　fundal　height　and　station,　the　fetal　head　location,　and　whether　the　fetal　head　or　buttocks　could　be　grasped)　as　independent　factors　affecting　the　ECV　success　rate,　and　we　scored　them　using　a　regression　coefficient.　RESULTS:　Women　with　scores　of　0-3　points　had　ECV　success　rates,　vaginal　delivery　rates,　and　delivery　gestational　ages　at　16.67%.　16.67%,　and　38.88　weeks,　respectively:　those　with　scores　of　4-6　points　had　ECV　success　rates,　vaginal　delivery　rates,　and　delivery　gestational　ages　at　65.75%,　58.90%,　and　39.62　weeks,　respectively;　and　those　with　scores　of　7-9　points　had　ECV　success　rates,　vaginal　delivery　rates,　and　delivery　gestational　ages　at　93.71%,74.83%.　and　40.00　weeks,　respectively.　CONCLUSIONS:　The　ECV　success　and　vaginal　delivery　rates　increased　with　the　score,　and　the　delivery　gestational　age　showed　an　initial　increase.　To　optimize　the　ECV　procedure　and　reduce　the　hospital　burden,　this　scoring　system　should　be　used　routinely　to　predict　the　ECV　success　rate　and　determine　the　timing　of　ECV　attempts.