Starting his first acquisition in 1960s, Dr. Oei Hong Djien has acquired more than 2000 artworks. Dr Oei's collection includes works by Indonesia's foremost modern artists, such as Raden Saleh (1807-1880), Affandi (1907-1990), S.Sudjojono (1913-1986), Hendra Gunawan (1916-1983), Lee Man Fong (1913-1988), H. Widayat (1919-2002), Soedibio (1912-1981), Basoeki Abdullah (1915-1993), Ahmad Sadali (1924-1987), etc; and also contemporary artists like Made Wianta (b. 1949), Heri Dono (b.1960), Dadang Christanto (b.1957), Agus Suwage (b. 1959), Entang Wiharso (1967), Nasirun (1965), Pupuk Daru Purnomo (b.1964), Nyoman Masriadi (1973), Rudi Mantofani (b.1973), Jumaldi Alfi (b.1973), Yunizar (b.1971),Handiwirman Saputra (b.1975), Yusra Martunus (b.1973), Angki Purbandono (b.1971), Eko Nugroho (b.1977), etc.