Objective To apply and evaluate a blended teaching mode in forceps simulation training. Methods A total of 28 obstetricians from an advanced training program of obstetricians in obstetrics Department of Third Hospital, Peking University joined the course of forceps simulation training from October to December, 2021.The trainees were randomly divided into experiment group and control group with 14 in each. The blended teaching mode defined by combination of online and offline teaching with simulation training was applied in experiment group and the trainees of control group was trained with traditional method characterized by off line teaching plus simulation technology assistant training. The training effect was evaluated by clinical skill assessment and questionnaire survey. Fisher's exact test was used for data analysis. Results Except for catheterization and prepare remedial plan after failure of forceps delivery, the proportion of trainees with high score in examinations of theoretical knowledge and clinical skill in experimental group was significantly higher than that in control group. For example, the proportion of trainees got 5 points in the informed consent, operation, timing and direction of forceps traction in experiment group reached 14/14 and 13/14 respectively while the proportion found in control group was 5/14 and 3/14 respectively(P＜0.001). The results of questionnaire survey showed that the proportion of high score in the level of theoretical knowledge, clinical skill, learning interest, the ability of autonomous learning and approbation of teaching mode in the experiment group was significantly higher than that in the control group. For example, the proportion of trainees who got 5 points in approbation of teaching mode reached 12/14 in experimental group and 0/14 in the control group ( P＜0.001). Conclusions The blended teaching mode improves the effect of forceps simulation training, learning interest, autonomous learning ability of trainees of post-graduate education program. The method is well acknowledged and accepted by obstetricians.