Communication between parents and children is an important foundation for building closeness between generations. This study aims to determine the relationship between the assertive communication style of millennial parents and the closeness of relationships with alpha children in Bukit Cianjur Residence, Cibeber District, using Alberti & Emmons' Assertiveness Theory with three dimensions: expressing feelings and opinions, defending personal rights, and respecting the rights of others. The study used a quantitative method with a correlational approach; data were collected through questionnaires administered to 89 millennial parents with alpha children using a non-probability, saturated sampling technique. The results show that assertive communication style has a positive and significant relationship with the closeness of relationships with alpha children, with the dimensions of respecting the rights of others and expressing feelings and opinions contributing more strongly than defending personal rights. These findings confirm that parents' application of assertive communication is related to establishing closer relationships with alpha children. Komunikasi antara orang tua dan anak merupakan fondasi penting dalam membangun kedekatan hubungan antargenerasi. Penelitian ini bertujuan mengetahui hubungan gaya komunikasi asertif orang tua milenial dengan kedekatan hubungan anak alpha di Bukit Cianjur Residence, Kecamatan Cibeber, menggunakan teori Asertivitas Alberti & Emmons dengan tiga dimensi: menyatakan perasaan dan pendapat, mempertahankan hak-hak pribadi, dan menghormati hak-hak orang lain. Penelitian menggunakan metode kuantitatif dengan pendekatan korelasional; data dikumpulkan melalui kuesioner terhadap 89 orang tua milenial yang memiliki anak alpha dengan teknik non-probability sampling jenuh. Hasil menunjukkan gaya komunikasi asertif berhubungan positif dan signifikan dengan kedekatan hubungan anak alpha, dengan dimensi menghormati hak-hak orang lain dan menyatakan perasaan serta pendapat berkontribusi lebih kuat dibandingkan mempertahankan hak-hak pribadi. Temuan ini menegaskan bahwa penerapan komunikasi asertif oleh orang tua berkaitan dengan terjalinnya kedekatan hubungan yang lebih erat dengan anak alpha.