PROBLEM TO BE SOLVED: To provide a laver rolling implement which allows even infants to make vinegared rice rolled in laver and a method of forming a laver-rolled rice ball.SOLUTION: A laver rolling implement N includes a first longitudinal member 1 having a long concave part in the longitudinal direction, a first grip member 3 attached to the first longitudinal member 1 so as to be nearly perpendicular to the longitudinal direction of the first longitudinal member 1, a second longitudinal member 2 which is supported freely rotatably by the first longitudinal member 1 and having a long concave part in the longitudinal direction, a second grip member 4 attached to the second longitudinal member 2 so as to be nearly perpendicular to the longitudinal direction of the second longitudinal member 2 and a laver insertion slit part 6 which is provided in the second longitudinal member 2 and formed so as to be nearly perpendicular to the longitudinal direction of the second grip member 4. With the first longitudinal member 1 and the second longitudinal member 2 being in mutual contact, the concave parts of the longitudinal members 1 and 2 face each other to form a nearly columnar concave part.COPYRIGHT: (C)2016,JPO&INPIT【課題】幼児においても、海苔巻きを容易に作ることができる海苔巻き器及び海苔巻きおにぎりの形成方法を提供する。【解決手段】海苔巻き器Nは、長手方向に長い凹部を有した第1の長手形状部材1と、この第1の長手形状部材1の長手方向に対して略直交するように第1の長手形状部材1に取り付けられた第1の取っ手部材3と、第1の長手形状部材1に回動自在に支持され、長手方向に長い凹部を有した第2の長手形状部材2と、この第2の長手形状部材2の長手方向に対して略直交するように第2の長手形状部材2に取り付けられた第2の取っ手部材4と、第2の長手形状部材2に設けられ、第2の取っ手部材4の長手方向に対して略直交するように形成された海苔挿入スリット部6とを備え、前記第1の長手形状部材1と前記第2の長手形状部材2を当接した状態にあって、前記長手形状部材1及び2の凹部が対向し、略円柱形状の凹部を構成する。【選択図】図1