To sum up, English as a world language, in the past few decades a significant change about the language, researchers have found that these changes not only from English language itself, but also from other factors. This chapter has attempted to outline the issues that need to be considered and, by implication, the issues for which policy makers should take responsibility. The questions of what type of assessment is necessary for the intended purpose, and what it can be expected to measure should be considered first. For the successful use of a language test for migration and citizenship purposes, those who define the policy must work with the test providers on several aspects after the decision to use a test has been made. During these changes will impact on language -related changes in language teaching and assessment. Assessment is the practice of collecting evidence of student learning. In the past, the English test or assessment still to the native English speakers of the language for criteria, which language closed to the native English speakers is a good standard of evaluation results, and vice versa is not up to the standard learning objectives. Language testing and evaluation is changed now, set the highest standards and evaluate the assessment of the highest standards from the distance and differences, and then view the object of study and progress through the content analysis. Language assessment also based on the different factors is change, and position of the language assessment is more important in the world, therefore, linguists, educators, and testing evaluators should pay more attention on the advantages and limitations of the language assessment, and to grasp these changes then take effective measures.