A fishing line reel main body which is provided with a counter box body (4) to make the installing of the counter box body (4) easy, comprises a frame work (7), a counter box body (4), an orientating protuberance (7f), an orientating dent (40a) and a first and second side cover (8a, 8b). A first and a second side board (7a, 7b) arranged with winding reel (10) and a connecting part (7c) are provided on the frame work. The counter box body (4) installed on the front top of the frame work (7) is a box component used to display the water depth. The orientating protuberance (7f) and the orientating dent (40a) orient the counter box body (4) installed on the installing face in random two crossed directions. The first and the second side covers are provided with a first and second moving-restricting part (8e, 8h) which restricts the counter box body (4) move upwardly and can cover the frame work (7) along the axial direction from the outside.【課題】對於具有計數器殼的捲線器本體，容易進行計數器殼的安裝。；【解決手段】捲線器本體，是具備：框架7、及計數器殼4、及定位突起7f及定位凹部40a、及第1及第2側蓋8a、8b。在框架中，具有將捲筒10配置於其間的第1及第2側板7a、7b及連結部7c。計數器殼，是載置於框架的前上部的水深顯示用的箱狀。定位突起及定位凹部，是設在載置面並平面地定位計數器殼。第1及第2側蓋，是具有規制朝計數器殼的上方移動的第1及第2移動規制部8e、8h，從軸方向外側覆蓋框架。
