Throughout its development stages, the generations of leaders, staff, and workers at the museum have always been dedicated and proactive, coming to remote hamlets to persuade the local people to support, contribute, and donate artifacts and cultural heritage. The museum has effectively managed cultural and spiritual relic sites, including the Son La provincial Museum; the Son La Prison special national relic sites; the Son La Prison Martyrs' Cemetery; the Heo hamlet banyan tree; the Que Lam stele and the Temple of King Le Thai Tong; the statue of President Ho Chi Minh with northwestern ethnic people associated with the Ho Chi Minh Temple at the Northwestern Square; and the exhibition house of the cultural heritage of the Son La Hydroelectric Reservoir area.

Currently, the Son La provincial Museum manages and preserves over 40,000 documents and artifacts of historical and cultural value at local and national levels. Among them, there are collections of artifacts from various ethnic groups, and archaeological, historical and cultural items; artifacts from the resistance wars against French colonialism and American imperialism; ancient Thai and Dao scripts; the cultural heritage of the Son La Hydroelectric Reservoir area; and records of political prisoners who were imprisoned by French colonialists at Son La Prison during 1930-1945.

Since 2023, the museum has collected 11 documents related to political prisoners who were held by French colonialists at Son La Prison during 1930-1945. It has also gathered 1,050 artifacts; preserved 16,254 documents and artifacts; inventoried 1,131 items; and digitised 212 artifacts. The museum has completed the digitisation of cultural heritage (scanning 157 ancient Thai books) and digitised 1,450 photos.

The museum has hosted 14 specialised exhibitions serving political tasks, such as "The Song of Vietnam-Laos Friendship and Solidarity," "President Ho Chi Minh with the People of Son La," "Son La with the Patriotic Emulation Movement," "The Le Dynasty in the Defence of the Northern Borders of the Fatherland," "Escape from Prison in 1943," "Son La - The Prehistoric and Protohistoric Periods," "The Border Areas Look towards the Sea and Islands," "Memories of Dien Bien," and "The Song of Soil Tilling”. Additionally, it has organised 155 tradition education events at historical sites, museums, and cultural establishments, as well as seven cultural and historical experience activities. These include studying Son La Prison within the system of prisons under French colonialism, exploring the legacy of General Vo Nguyen Giap - the legendary general, and promoting Vietnam's sea and island sovereignty and territorial integrity.

In addition, the museum has completed proposals to rank the Temple of Co Doi Thuong Ngan in Van Ho district as a provincial-level relic site and Lac Man Shrine in Sop Cop commune, Sop Cop district as a historical-cultural relic site. Notably, it conducted excavation and artifact processing at the Tang Cave archaeological site in Da Do commune, Phu Yen district, yielding 9,758 artifacts. It also completed plans for the preservation and promotion of the values of intangible cultural heritages such as the art of decorative patterns on the Mong ethnic people's costumes (2023), the art of Xoe Thai dance (2024), and the preservation and development of the cultural heritage of the ethnic minorities in Son La province (2024). The museum prepared a scientific dossier for the Xen Lau No Festival of the Black Thai people in Yen Chau district to propose its inclusion in the national intangible cultural heritage list in 2024.

Proud of its 40-year development tradition, the staff and workers of the Son La provincial Museum continue to promote solidarity to build a strong, dynamic, and creative unit in the cause of renovating cultural heritage preservation and promotion. This contributes to the province's socio-economic development, building and developing the culture and people of Son La, as well as the Vietnamese culture that is advanced yet imbued with national identity.

Proud of their 40-year tradition of development, the staff and workers of the Son La provincial Museum continue to foster solidarity, building a strong, dynamic, and creative unit dedicated to the renewal of cultural heritage preservation and promotion. This effort contributes to the province's socio-economic development, while also helping to build and nurture the culture and people of Son La, as well as advancing Vietnamese culture that is both progressive and deeply rooted in national identity.