Based on the technology of precision penetrating warhead, the structural design, penetrating stability analysis and numerical simulation of shaped charge jet were studied. The shaped charge jet with 4 kinds of charge calibers of φ50 mm, φ56 mm, φ81 mm and φ100 mm is designed and developed, and the precision charge technology is adopted. Vertical static penetration test was used to check the penetration depth and jump. The test results show that the study can meet the requirements of high stability of jet energy and penetration performance of shaped charge jet products.