The researchers introduced a task named EuroAlpaca to maintain a localized pipeline and a multi-language benchmark for European -IFEval, aiming to address the issue of performance degradation in large language models caused by direct translation of instruction data. This pipeline covers 50 European languages and preserves key content and verifies consistency through domain-specific machine translation or reconstructing equivalent instances in the target language. In LoRA experiments with four large models, direct translation of data improved some evaluation scores, but it reduced the accuracy of European -IFEval by 29.8% compared to the unadapted baseline; after adaptation using EuroAlpaca, the accuracy increased by 12.9% compared to the same baseline, successfully reversing the performance degradation and achieving the highest ROUGE-L and F-BERT scores in the Aya evaluation suite.