The work aims to solve the slow coupling speed and low productivity caused by the introduction of isolator in the process of coupling and packaging of coaxial semiconductor laser and optical fiber, and to solve the problem that the mechanism of electromagnet cannot release the isolator after picking up in the packaging equipment for the isolator and the laser. The technical conflicts were solved in the method of TRIZ contradiction matrix. A technological process that the isolator and laser were encapsulated first and then coupled with the optical fiber was proposed. A brand new pick-and-place mechanism was designed. The optimized experimental prototype reduced the coupling time of the coaxial semiconductor laser with isolator and the optical fiber from 2 min in the original process to 40 s. The new technological process has greatly reduced the difficulty in packaging the entire device and improved the coupling efficiency.