The clinicopathological feature of primary cutaneous lymphomas according to WHO/EORTC classification and their relationship to EBV in Taiwan has never been reported. This retrospective study collected the patients with cutaneous lymphomas from 1990 and 2006. The morphology, EBER in situ hybridization and immunohistochemistry of primary cutaneous lymphomas were studied to reclassify based on the WHO/EORTC classification. A total of 54 patients were included. Twenty-nine were primary cutaneous lymphomas and 25 were secondary cutaneous lymphomas. The age ranged from 21 to 86 years old (mean 62 years old). Twenty-one (72.4%) were primary cutaneous T-cell and NK-cell lymphoma, including 5 extranodal NK/T-cell lymphoma, nasal type (17.2%), 5 primary cutaneous peripheral T-cell lymphoma, unspecified (17.2%), 4 mycosis fungoides (13.8%), 1 Sezary syndrome, 3 primary cutaneous anaplastic large cell lymphoma, 2 primary cutaneous small-medium CD4+ T-cell lymphoma and 1 subcutaneous panniculitis-like T-cell lymphoma. Eight cases were primary cutaneous B-cell lymphoma (27.6%) including 3 cutaneous marginal zone B-cell lymphoma (10.3%), 3 cutaneous follicle center B-cell lymphoma (10.3%), and 2 diffuse large B-cell lymphoma, leg type (6.9%). Seventeen cases were secondary cutaneous T-cell and NK -cell lymphoma. Eight cases were secondary cutaneous B-cell lymphoma. All primary and secondary extranodal NK/T-cell lymphoma, nasal type, were positive for EBER, however, one of them (10%) without both angiocentric growth pattern and necrosis in histomorphological examination. This is the first clinicopathological study of cutaneous lymphoma according to recent WHO/EORTC classification in Taiwan. In comparison with the Western countries, mycosis fungoides is less common whereas primary extranodal NK/T-cell lymphoma, nasal type, and peripheral T-cell lymphoma, unspecified, is more common in Taiwan. EBER in situ hybridization study is helpful in the diagnosis of extranodal NK/T-cell lymphoma, nasal type, especially in tumor without both angiocentric growth pattern and necrosis.