| No. | Jenis Kerjasama | Bentuk dan Nama Perjanjian | Tempat dan Tanggal Penandatanganan | Ratifikasi |
| 1 | Di Bidang Teknis | Agreement | Colombo | Diratifikasi melalui Keppres No.7 tanggal 14 January 1980 LN No.4. |
| Agreement Between the Government of the Republic of Indonesia and the Government of the Democratic Socialist Republic of Sri Lanka Concerning Technical Cooperation. (Persetujuan Antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratik Sri Lanka Mengenai Kerjasama Teknik). | 17-Nov-79 | |||
| 2 | Penghindaran Pajak Berganda | Agreement | Colombo | Diratifikasi melalui Keppres tanggal 17 Februari 1994 LN No.2. |
| Agreement Between the Republic of Indonesia and the Democratic Socialist Republic of Sri Lanka for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income. (Persetujuan Antara Republik Indonesia dan Republik Sosialis Demokratik Sri Lanka Mengenai Penghindaran Pajak Berganda dan Pencegahan Pengelakan Pajak Atas Penghasilan). | 3 Februari 1993 | |||
| 3 | Di Bidang Transportasi Udara | Agreement | Colombo | Ratifikasi tidak diperlukan |
| Agreement Between the Government of the Republic of Indonesia and the Government of the Democratic Socialist Republic of Sri Lanka For Air Services Between and Beyond Their Respective Territories. (Persetujuan Antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratik Sri Lanka Mengenai Angkutan Udara Antara dan Melampaui Wilayah Masing-Masing). | 16 Desember 1993 | |||
| 4 | Di Bidang Informasi | MoU | Jakarta | Ratifikasi tidak diperlukan |
| Memorandum of Understanding Between the Government of the Republic of Indonesia and tghe Government of the Democratic Socialist Republic of Sri Lanka Concerning Cooperation in the Field of Broadcasting and Information. (Memorandum Saling Pengertian Antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratik Sri Lanka Mengenai Kerjasama di Bidang Penyiaran dan Penerangan). | 10 Juni 1996 | |||
| 5 | Di Bidang Ekonomi | Agreement | Jakarta | Belum diratifikasi |
| Agreement Between the Government of the Republic of Indonesia and the Government of the Democratic Socialist Republic of Sri Lanka on Economic and Technical Cooperation. (Persetujuan Antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratik Sri Lanka Mengenai Kerjasama Ekonomi dan Teknik). | 10 Juni 1996 | |||
| 6 | Di Bidang Investasi | Agreement | Jakarta | Diratifikasi melalui Keppres No.6 tanggal 12 Maret 1997 LN No.13. |
| Agreement Between the Government of the Republic of Indonesia and the Government of the Democratic Socialist Republic of Sri Lanka Concerning the Promotion and Protection of Investments. (Persetujuan Antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratik Sri Lanka Mengenai Peningkatan dan Perlindungan Atas Penanaman Modal). | 10 Juni 1996 | |||
| 7 | Di Bidang Pertanian | MoU | Jakarta | Ratifikasi tidak diperlukan |
| Memorandum of Understanding Between the Government of the Republic Indonesia and the Government of the Democratic Socialist Republic of Sri Lanka on Agriculture Development Cooperation. (Memorandum Saling Pengertian Antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratik Sri Lanka Mengenai Kerjasama Pengembangan Pertanian). | 12 Januari 2004 | |||
| 8 | Konsultasi Bilateral | MoU | New York | Ratifikasi tidak diperlukan |
| Memorandum of Understanding between the Government of the Republic of Indonesia and the Government of the Democratic Socialist republic of Sri Lanka on the Establishment of Joint Commission for Bilateral Cooperation (Memorandum Saling Pengertian antara Pemerintah Republik Indonesia dan Pemerintah Republik Sosialis Demokratic Sri Lanka mengenai Pembentukan Komisis Bersama untuk kerjasama Bilateral) | 1 Oktober 2007 | |||
| 9 | Di Bidang Terorisme | MoU | New York | Ratifikasi tidak diperlukan |
| Memorandum of Understanding between the Government of the Republic of Indonesia and the Government of the Democratic Socialist Republic of Srilanka on Combating Terorism (Memorandum saling Pengertian antara pemerintah republik Indonesia dan pemerintah Republik Sosialis Demokratik Srilanka mengenai Pemberantasan Terorisme Internasional) | 1 Oktober 2007 | |||
| 10 | Joint Commission | MoU | New York | Ratifikasi tidak diperlukan |
| Memorandum of Understanding between the Government of the Republic of Indonesia and the Government of the Democratic Socialist Republic of Sri Lanka on the Establishment of Joint Commission for Bilateral Cooperation (Memorandum saling Pengertian antara pemerintah Republik Indonesia dan Pemerintah Republik Sri Lanka mengenai Pembentukan Komisis Bersama untuk Kerjasama Bilateral) | 1 Oktober 2007 | |||
| Updated May 2008 | ||||