The tropical forest as important biodiversity habitat continuous fragmented by linear infrastructure worldwide. To address this challenge for maintaining the ecological function of habitat connectivity from one site to another become pivotal. Defines the critical linkage area as a part of an ecology of linear infrastructures such as road, powerline, and canal. This study aims to assess the critical linkage area for connecting the fragmented Orang-utan habitat as charismatic species in Borneo’s tropical forest. The case study in Sebangau-Katingan landscape that fragment by trans Kalimantan road, powerline and canal, Central Kalimantan province, Indonesia. The approach of this studies combined several modelled such as land cover change generator, InVEST, maxent and corridor design. The land cover change generator to predict land cover disturbance for the next twelve years based on spatial planning policy. The land cover prediction result as an input for running InVEST defined remaining habitat quality. Maxent modelled for validating the suitable habitat based on the environmental conditions and species occurrence. The corridor design delineated the critical linkage areas based on remaining habitat quality and suitable for Orang-utan habitat. The study result showed two options of critical linkage area that it is suitable for bridging Orang-utan movement. From south to northern part of the landscape and return. The first critical linkage area located on the East side of the Sebangau-Katingan corridor landscape is about 2,607 hectares. The second critical linkage area located on the Westside is about 2,822 hectares. However, there is some part of the areas that need to restore to enhance the corridor functions. The study limitation did not cover the stakeholders and landowner within the critical linkage areas. It needs further assessment to explore and discover the stakeholder willingness to establish critical linkage areas.