Abstract: In order to improve the pyroshock environment of point-type satellite-rocket separation and optimize the design of the connection unlocking devices, the pyroshock transmission mechanism of point-type satellite-rocket separation was studied. Based on the constraint of fixed satellite-rocket interface, the corresponding pyroshock reduction measures were proposed. The honeycomb and rubber pad were attached to the top of the explosive initiator collecting cylinder to reduce the secondary impact caused by the collision of the structural remnants of the initiating explosive devices. The gaskets made by different combinations of materials were added, to reduce the pyroshock from explosive agents. Preliminary numerical simulations show that the combination of magnesium alloy, stainless steel and glass fiber reinforced plastics presents a more desirable pyroshock reduction effect. The experimental results show that the phenomenon of secondary impact is no longer obvious after the installation of honeycomb and rubber pad. The pyroshock of satellite side is reduced by 43.3% and 39.5% respectively with combined gaskets of 3 mm and 1 mm in thickness in the pyroshock transmission path. The proposed measures for pyroshock reduction together with the experimental results provide engineering guidance for improving the pryoshock environment of point-type satellite-rocket separation.