It is an object of the invention to provide an elongate cleaning element holder which contributes to a smoother cleaning operation, for a cleaning tool in which a cleaning element for cleaning an object to be cleaned is attached to the cleaning element holder. The representative cleaning element holder 120 includes a holding element 132 to be inserted into an insert region of the cleaning element. The holding element 132 has an inclined part 136 wherein a height of the inclined part 136 in a direction transverse to an extending direction of the holding element 132 gradually increases toward the connection.