The adoption of original weld method usually causes the low pass rate and poor reliability of the collector for propellant management device. In order to solve the problem, resistance seam welding tests between titanium alloy bearing plate and stainless steel screen with pure titanium interlayer were performed. Subsequently, electron beam welding tests between the two and titanium alloy frame were performed. Then vibration tests in terramechanical environment were performed to verify the effectiveness of the addition of the pure titanium interlayer. The welding tests results show that the pure titanium interlayer could significantly reduce the welding heat during the resistance beam welding process and further reduced the hot deformation of screen. In addition, the interlayer could form a firm and enclosed pure titanium and stainless steel transition, which could effectively increase the deformation resistance of the screen during the electron beam welding process and further improve the percent of pass and property of welded samples. The vibration tests results show that the improved welding method could increase the lower confidence limits for reliability of collector from 0.90 to 0.96.