Abstract: In a mold with multiple cavities and multi-direction core-pulling injection mold, the contrastive core-pulling mechanism between adjacent cavities will need to increase the installation space, so that the overall size of the mold will be larger and the cost will increase. According to the characteristics of lateral convexity and concavity in four directions, a hot runner injection mold with four cavities was designed by using four core-pulling mechanisms on the outside of inclined guide posts. Through the analysis of the core-pulling distance, the direction with the minimum core-pulling distance is placed on the inside of the mold to reduce the mounting space of the slider. A common wedge block was used for the opposite slider of the adjacent cavity, which reduced the cavity spacing by 41.5%. The two directions of the shared wedge block were subjected to the same cavity pressure, and the force was stable. A single product is arranged with 25 push rods to push out the balance. A circulating cooling water channel is designed. The mold temperature is even. Through practice, the mould has compact structure and reliable movement of core-pulling mechanism.