Masuknya jenis ikan asing berpotensi merubah keseimbangan pada perairan umum daratan, dan di Indonesia gejala ini sudah mulai terlihat. Makalah ini bertujuan untuk membahas lebih lanjut tentang perkembangan introduksi ikan asing, strategi pelaksanaan intoduksi dan berbagai dampaknya terhadap komunitas ikan asli perairan di Indonesia. Penelitian dilakukan melalui penelusuran dan studi pustaka tentang: sejarah kegiatan introduksi ikan yang dilakukan ke Indonesia, jenis-ikan introduksi ikan di Indonesia dan kegiatan introduksi ikan yang telah dan dilakukan di Indonesia beserta dampaknya. Verifikasi lapangan dilakukan pada tahun 2011 di beberapa danau dan waduk antara lain Danau Sentani, Danau Kerinci, Danau Matano dan Waduk Riam Kanan. Data yang terkumpul ditabulasi dan dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa introduksi ikan asing dilakukan di Indonesia sebelum tahun 1900. Introduksi ikan yang telah dilakukan selama ini, lebih banyak dilakukan tanpa melalui kajian ilmiah yang mendalam dan telah terbukti mengakibatkan hilang atau berkurangnya populasi ikan asli atau endemik serta menjadi agen pembawa penyakit. The entry of alien fish species could potentially change the balance of the inland waters and in Indonesia this symptoms was shown. The paper aims are to discuss more about the development introduction of alien fish species, the introduction implementation strategy and its impact to indigenous fish species communities in Indonesian inland waters. The study was conducted through a literature research about: the history of fish introductions activities which carried out in Indonesia, the species of fish introduction in Indonesia and the activities of introduction fish that have been conducted in Indonesia and its impact. Field verification was conducted in 2011 at several lakes and reservoir such us: Sentani Lake, Kerinci Lake, Matano Lake and Riam Kanan Reservoir. The collected data were tabulated and analyzed descriptively. The results showed that alien fish introductions were conducted in Indonesia before 1900. Introductions of fish those have been conducted so far is mostly done without in-depth scientific study and it has been shown affected in lost or reduced populations of indigenous or endemic species of fish as well as being an agent of disease carrier.