본고는 용인 보정동 소실봉 일대의 고분 조사 현황과 출토유물의 양상을 살폈으며, 출토유물을 통해 시기 구분을 시도하였다. 특히, 신라 고분 뿐만이 아닌 백제와 고구려의 고분까지로 함께 살펴봄에 따라 소실봉에서 축조된 고분의 양상과 성격을 파악하였다. 먼저, 한성 백제기의 소실봉에는 북쪽 동사면에는 주거지가 조성되고 이후 남쪽 남사면에 고분을 축조하여 입지와 시기적 차이를 보이고 있다. 고구려 고분은 북쪽 동사면 말단에 위치하는데 전형적인 남한지역의 고구려 고분의 특징을 띠고 있다. 신라에 의해 조영된 고분은 출토 유물을 통해 3기로 구분하였는데, 1기에 해당되는 것은 북쪽의 동사면과 남쪽의 남사면에 위치하며 2기의 유적은 남쪽의 남동사면에 있다. 3기는 북쪽의 북사면과 남쪽의 남동사면 말단에 위치해있다. 백제는 인근의 소실봉과 마북동의 주거지로 볼 때 안정적 생활을 영위하던 중 고구려의 남진으로 인해 5세기 후반 혼란이 시작되었으며, 고구려는 고분과 인근 주거지의 출토 유물 등으로 볼 때 이 지역을 영역적 지배하에 두지는 못했던 것으로 파악된다. 6세기 중반 신라의 북진으로 인해 강제적 영역화가 이루어졌는데, 이는 급속한 물질문화의 변동으로 알 수 있다. 신라에 있어 보정동 고분군-마북동 유적-할미산성은 매우 유기적 관계에 놓여있다. 유적의 성격은 다르지만, 형성시기가 유사하기 때문이다. 이 유적들은 6세기 중반부터 형성되었으며 마북동 유적과 할미산성은 인화문토기가 연속되어 출토되지 않아 7세 초 이후 공백기가 존재한다. 그러나 보정동 고분군은 통일기에도 지속적으로 조영되고 있어 집단의 변화 혹은 마을 유적의 이동이 추정된다. 또한, 같은 시기에 형성되었음에도 불구하고 마북동 주거지와 할미산성 출토 유물에서 친연성이 보이지만 보정동 고분군 출토품을 다른 점이 관찰되었다. 이는 집단보다는 수급지의 차이로 이해되며 고분군에서 출토되는 유물이 적은 이유는 6세기 중반의 전시상황과 급격한 사민으로 인한 이주로 생산과 유통이 원활하지 못했기 때문으로 여겨진다.
This paper examined the current status of the relics and remains in the area of Sosilbong Peak in Bojeong-dong, Yongin City, where Silla tombs were reported, and the excavated relics. Sosibong Peak is divided into the northern and southern areas centering on the elementary school, and seven ruins out of a total of nine are located in the south. 51 Silla tombs in total were identified from these ruins, and 322 artifacts were excavated. Most of the tombs were stone-lined tombs with a side entrance, and relics are primarily divided into earthenware and metals. There were 191 earthenware and 105 metals. The period was divided into three periods, focusing on the earthenware styles of the Unified Silla Kingdom Period. The first period was set from the middle of the 6th century to the middle of the 7th century, around the 7th century. The 22 tombs belonged to this period, including the ruins of Bojeong-ri Sosil Historic Site, Bojeong-ri Ancient Tombs Cluster, Bojeong-dong Ancient Tomb Cluster I, and Sammakgok Historic Site in Bojeong-dong. Considering the form of Y-shaped bowl, lid, and long-necked jars with stands, Bojeong-dong Ancient Tombs Cluster I and Bojeong-ri Ancient Tombs Cluster located in Namsa-myeon are likely to be the earliest among the first period. The most notable ware type was a jar with a short neck. It was buried only in the first period, and it is the third-largest ware type, following long-necked jars and lids. Accordingly, longnecked jars with stands, lids, and short-necked jars were mainly buried as a set in the tombs of the first period. Since insufficient research on the short-necked jars of Silla has been done, there is a high significance of the short-necked jars in the first period. As for the patterns, some patterns were identified such as patterns drawn with semicircles with a dot in the center, triangles with lines inside along with semicircles with a dot in the center, and circles with a dot in the center. The second period was when the stamped patterns were excavated, which was considered from the late 7th to the mid 8th century. They are Bojeong-dong Historic Sites 4, 7, and 10, and they had stone-lined tombs with a side entrance. The stone chamber was nearly square and orthogonal to the contour. In the relics, bowls with stands, 凸-shaped lids, short-necked jars with stands, and bottles were excavated. These forms were popular in the first half of the 8th century, and the excavated belts and pins on a hat also revealed the characteristics of the Unified Silla Kingdom Period. The third period was set from the late 8th century to the 9th century. During the period, bowls with a stand was changed into bowls with legs, and the height of a 凸-shaped lid was lowered, weakening the curvature of the base. These ruins were three in total and found in the three historic sites located at 988-1 and 442-1, which correspond to the northern end slope of the Sosilbong Peak and the end of the southeastern slope, respectively. In the northern area of Sosilbong Peak in Bojeong-dong, the tombs had extended from the east slope to the north over time. In the southern area, they had extended from the south slope to southeast slope. In addition, Baekje dwellings, tombs, and ancient tombs of Goguryeo were discovered in that area, indicating that ruins were formed in the area of Sosibong Peak after a long period of different nationalities. Although most studies in Bojeong-dong were conducted due to development, it is expected that the studies will provide much information for restoring and interpreting the funeral culture of the Silla Kingdom.