The purposes of this study were l) to clarify the factorial structure of fundamental physical fitness, and 2) to establish test batteries of fundamental physical fitness for college judoists. Four morphological measures and 13 motor performance tests were administered to 72 co1lege judoists. Principal component analysis and normal varimax rotation were applied to the correlation matrix which was calculated with 17 test variables . Five factors were extracted and interpreted as follows : 1) Physical and static Strength, 2 ) Power of lower limbs, 3) Total body power with agility, 4) Endurance, 5) Flexibility, Taking both factorial validity and practicability of tests into consideration, the following conventional formulas for estimating each fundamental physical fitness domain extracted as factor were determined : F1=0.29X_1+0.13X_2+0.16X_3+0.15X_6+0.11X_7+0.36X_8+0.30X_9-0.03X_<17>-78.31,F2=0.60X_6+0.27X_<10>+0.22X_<11>-6.89X_<13>+29.95,F3=0.94X_4+1.21X_5+0.68X_-110.05,F4=0.73X_<11>+0.11X_<17>-33.54,F5=1.87X_+21.10, where X_1=stature, X_2=body weight, X_3=chest girth, X_4=sitting height, X_5=side step, X_6=vertical jump, X_7=back strength, X_8=grip strength (R), X_9=grip strength (L), X_<10>=modified Harvard step test, X_<11>=trunk extension, X_<12>=trunk flexion, X_<13>=50m dash, X_<14>=running broad jump, X_<15>=handball throw, X_<16>=chinning, and X_<17>=endurance running.