金枪鱼延绳钓单丝和绳索的惯性力系数CM和阻力系数CD取值直接影响到渔具数值模拟的计算速度和精度。通过波浪水槽试验探究了7种金枪鱼延绳钓单丝和绳索材料在规则波条件下所受的波浪力，并在Morison方程的基础上，使用最小二乘法计算出相应材料的CM和CD；分析了CM和CD随KC数和雷诺数Re 的变化情况。结果显示：同一波高下，试验材料所受波浪力随着波浪周期增加逐渐增加；同一波浪周期下，试验材料所受波浪力随波高增加逐渐增加；相同材料随着直径增加，所受波浪力增加；3种尼龙单丝随着KC数增加CD逐渐增加， CM变化不明显，趋于常数，随着雷诺数Re的增加CM和CD有逐渐增加的趋势；3种聚丙烯绳索CM随着KC数和雷诺数Re 增加而增加，CD在低KC数时较为平稳，其随着雷诺数Re增加逐渐下降，趋于常数；涂沥青的聚丙烯绳索的CM和CD较为稳定。研究表明，本试验得出的CD和CM，可用于延绳钓渔具数值模拟。

Inertia force coefficient CM and resistance coefficient CD of monofilament and rope used in tuna longline gear directly affect the computational speed and accuracy of numerical simulations of fishing gear. In this study, wave forces acting on seven types of monofilament and rope materials for tuna longline gear under regular wave conditions were investigated through wave tank experiments. Utilizing the Morison equation and employing the least squares method, CM and CD for respective materials were calculated. The variations of CM and CD with Keulegan-Carpenter number KC and Reynolds number Re were analyzed. The results indicate that: (1) Under the same wave height, the wave forces acting on experimental materials gradually increase with increasing wave period. (2) Under the same wave period, the wave forces acting on experimental materials gradually increase with increasing wave height. (3) With increasing diameter, the wave forces acting on experimental materials also increase. (4) For three types of nylon monofilament, CD gradually increases with the increasing of KC number, while CM remains relatively stable, and CM and CD exhibit an increasing trend with the increasing of Re . (5) For three types of polypropylene ropes, CM increases with the increasing of KC and Re number, while CD stabilizes at lower KC numbers and decreases gradually with the increasing of Re . (6) Polypropylene ropes coated with asphalt exhibit relatively stable CM and CD values. The obtained CD and CM values from this experiment can be applied to the numerical simulations of longline fishing gear.