The present invention relates to a body measurement system using a belt and a mattress recommendation method using the same. The body measurement system has multiple unit belt modules arranged in a widthwise direction. Each of the unit belt modules includes: a base frame arranged on the ground surface a support frames which are individually installed on both ends of the base frame and are formed as facing vertical plates upper and lower pulley units which are individually in the upper and lower parts between the vertical plates and a control module. The control module includes: a belt tension generation unit which is wound on the upper and lower pulley units and includes the belt installed between the upper pulley units in a horizontal direction to support the weight of a testing target a belt length adjustment unit which is installed on an end of the belt to adjust the length of the belt and a weight sensing unit which is installed on the other end of the belt and measures the tension of the belt to calculate the weight of the test target. The control module detachably couples the individual unit belt modules to adjust the number of the unit belt modules to correspond to the height of the test target, is connected to the belt length adjustment units and weight sensing units, and analyzes the height of the test target, the load on the individual belts, and the average weight thereof from the information received from the weight sensing units to recommend a mattress suitable for the test target, and enables the test target to experience and use the recommended mattress by adjusting the belt length adjustment unit.COPYRIGHT KIPO 2017본 발명은 벨트를 이용한 신체 측정 시스템 및 이를 이용한 매트리스 추천방법에 관한 것으로서, 단위벨트모듈이 폭 방향으로 다수 배치되어 구성되는, 벨트를 이용한 신체 측정 시스템으로서, 상기 단위벨트모듈은, 지면 상에 배치되는 베이스 프레임 상기 베이스 프레임의 각 양단에 설치되며, 서로 마주보는 수직판으로 형성된 서포트 프레임 상기 수직판 사이의 상, 하부에 각각 설치되는 상부 풀리 및 하부 풀리 및 상기 상부 풀리 및 하부 풀리 상에 권취되고 양측 상기 상부 풀리 사이에서 수평으로 설치되어 피험자의 하중을 지지하는 벨트를 포함하는 벨트장력발생유닛과, 상기 벨트의 일단에 설치되며 벨트의 길이를 조절하는
