The study of the stone chamber tomb with corridor-style entrance of the Sabi period has been conducted from various perspectives thus far, but it has been difficult to grasp the overall burial process. Accordingly, this study analyzed and reconstructed the burial process at stone chamber tombs with corridor-style entrances dating to the Sabi period based on data from tombs investigated in Buyeo, Iksan, Wanju, Yesan, and Boryeong. The analysis of the tomb construction process makes it possible to distinguish three stages. Stage I is the step before the construction of the stone chamber, during which tomb location is selected, the tomb pit is dug, and the drainage channels are installed. Stage II is the step during which the stone chamber is built and involves the selection of the stone block form and the assembly of the stone chamber. When the assembly of the stone chamber is completed, the first layer of earth is laid out, covering the upper part of the stone chamber. In Stage III, the burial site and burial goods are buried, and the stone chamber is closed off. A second layer of earth is then laid out, covering the corridor section. At the same time, the surrounding stones are installed, thereby marking out the boundary of the burial mound. After that, the third second layer of earth is then laid out and a surrounding ditch installed. Taking into consideration this reconstructed construction process, the associated rituals that would have taken place were also reconstructed for the Sabi period, using the example of western tomb cluster of the Neungsan-ri burial ground in Buyeo. In Stage I, construction of the tomb began immediately after the deceased individual’s death, and the deceased was placed in a temporary resting place. Rituals appear to have been practiced during the removal of the deceased to the temporary resting place. In Stage II, rituals took place for the duration of the period during which the deceased was laid to rest at the temporary resting place. Rituals were not only to mourn the deceased but also served a political and diplomatic function. In Stage III, the deceased was removed from the temporary resting place to the stone chamber. During this stage, rituals would have been carried out during the transportation process of the deceased and around the time that the construction of the chamber was finalized. The stone chamber tombs with corridor-style entrances of the Sabi period are distributed in various areas in Buyeo, Iksan, Wanju, Yesan, and Boryeong. As it is presumed that a master ‘blueprint’ of sorts had been widely shared for the construction of these tombs, it seems likely that the burial process was also shared.