Tombs are very important in the architecture and culture of Islamic Iran. These buildings have different letters depending on the fit of the shape and function. The most important of these letters are: tower, dome, tomb, shrine, shrine and similar words that can refer to a building placed on a grave. In ancient times, the word "nahoft" (cache), was used for a grave. Words such as “goorgah” and “goorjay” (both meaning place of grave) were also used, which includes a covered space on the grave. Mir Heidar Esfahdagheh Tomb is one of the monuments that was built on the tomb of Mir Heidar in Dolatabad of Esfahdagheh village of Jiroft city in the Safavid period, which is known as the family tomb of Abu Saeedi tribe. Inside the tomb and under the dome of the building, three rectangular tombs made of marble can be seen. The monument was made by Mir Mast Ali who was buried in the same building where used to be the government building. Later others were also buried there; as was Mir Heidar. Before it was turned into a cemetery, it was the residence of those who handled people's complaints. Mir Heidar is the son of Mir Soleyman, a mystic and elder of the Mahni tribe, and a descendant of Abu Sa'id Abolkhayr, from the Alawī tribes of Safavid period. The plan of the tomb is octagon from the outside and with four corners from the inside and in the form of a cross, which has been turned into eight sides and eight arcades at the top, and then a circular dome has been built on it. The number eight is a symbolic number reminding of eight heavens. This building has 4 entrances from four main directions in the form of a lattice. The facade of the building is decorated with two rows of arcades from the outside, which has created the lower row of the ground floor (porches). The main and practical materials used in the tomb are brick and river stones, which are of the main native materials of the region. Arrays such as stucco, geometric and arabesque decorations with the figure of Shah Abbas in the form of paintings on plaster can be seen in this tomb. The niches, porches, domes and inner rooms of the tomb are decorated with red geometric motifs. In addition, various geometric motifs such as sun, star, poems written in Naskh and Nastaliq script with mystical themes have been used. The main question is what are the architectural and decorative elements of Mir Haidar Tomb and which tomb buildings are similar in terms of spatial structure and plan? The purpose of this article is to study the architectural structure, decorative and artistic elements of Mir Heidar Tomb. In terms of plan, it is similar to tomb buildings such as the tombs of Mullah Hassan Kashi and Akhund Kouhbanani, Farfan of Isfahan, Nasak and Keshit Golbaf. To answer the question, the architecture and details of this tomb have been studied and analyzed. The method of data collection in this research is field, library and face-to-face interview with Ahmad Khan Abu Saeedi, a descendant of Mir Heidar Mahni, and data analysis is based on inductive reasoning.