A presente pesquisa traz um estudo comparativo do nivel de ansiedade de mulheres com câncer participantes e nao participantes de grupos de apoio, com o objetivo de identificar o nivel de ansiedade. Como instrumento foi utilizada a Escala Beck (BAI), que responde a tematica proposta, que foi aplicada de forma individual, de acordo com a disponibilidade das mulheres pesquisadas. O estudo mostrou que participantes de grupos de apoio apresentam nivel de ansiedade menor do que as mulheres que nao participam de um grupo de apoio, entretanto, independentemente de participarem de grupo de apoio ou nao, das doze mulheres, onze apresentam uma grande vontade de viver e lutar contra a doenca. Comparative study of the anxiety level of women with cancer participants and non-participants of support groups Abstract: This research brings a comparative study of the anxiety level of women with cancer participants and non-participants of support groups in order to identify their anxiety level. As a tool it was used the Beck Scale (BAI), which responds to proposed theme, which was applied individually, according to the availability of the surveyed women. The study showed that participants in support groups have lower anxiety levels than women who do not participate in a support group, however, whether to participate in support group or not, among twelve women, eleven of them really want to live and fight against the disease. Keywords: Anxiety level. Women with cancer. Support groups.