PURPOSE OF THE PAPER. The purposes of this study were to examine the relationships between acculturation and (1) access to health services and (2) use of preventive services among Vietnamese women in western Massachusetts. METHODS. The telephone survey method was conducted with 141 Vietnamese women ages 18 years or over. PRINCIPAL FINDINGS. Of the acculturation variables, language acculturation was significantly related to having a routine place for health care and a regular provider. Women tended to have better access to health service with an increase in the length of residence in the US. Length of residence in the US was an independent predictor of prior use of Pap test and clinical breast examination. CONCLUSIONS. Utilization level of preventive health services among study group participants was low. The findings indicate that length of residence and increase in language capacity (more English usage) lead to more adequate access to health care. RELEVANCE TO ASIAN PACIFIC ISLANDER AMERICAN POPULATIONS. This study is particularly relevant to Vietnamese American women in the U.S. KEY WORDS. Vietnamese women; acculturation; preventive heaslth services; Massachusetts.