Artificial intelligence translation technology can improve communication quality in multilingual environments.A shad-ow space optimization method was proposed to address the issue of sentence alignment in artificial intelligence translation.During the process,a preprocessing process for statements was designed,and typical bases were solved.Particle updates were used to optimize the calculation time.The experimental results show that the alignment accuracy of the research method for sentence alignment remains above 91.3%when the sample size reaches 5 000.The results indicate that the artificial intelligence translation statement alignment technology designed in the study can complete translation tasks between Chinese and English at a faster speed,maintain higher trans-lation accuracy,and bring less hardware pressure during actual operation.It can be effectively applied in practical translation scenari-os and provide efficient and reliable technical references for artificial intelligence translation technology,Helps promote cultural ex-change between Chinese and English speaking populations.