A gear oil composition for automobiles, comprising at least a base oil, a sulfur-based extreme pressure agent, wherein the content of the sulfur-based extreme pressure agent is 1% by mass or more, based on the total amount of the composition, and a phosphorus-based extreme pressure agent, wherein the content of the phosphorus-based extreme pressure agent is 0.5% by mass or more, based on the total amount of the composition, and satisfying the following requirements (i) and (ii): Requirement (i): (a)×(b)×(c) is 0.08 or less, and Requirement (ii): [(a)×(b)×(c)/(d)]×10000 is 0.20 or less, wherein: (a) represents a wear track diameter (mm) of a fixed sphere after tested in a Shell four-ball wear test according to ASTM D4172-94 and using 20-graded SUJ-2-made 0.5-inch balls at an oil temperature of 75°C and a rotation number of 1500 rpm, under a load of 196 N and for a test time of 60 minutes; (b) represents a wear track diameter (mm) of a fixed sphere after tested in a Shell four-ball wear test according to ASTM D4172-94 and using 20-graded SUJ-2-made 0.5-inch balls at an oil temperature of 75°C and a rotation number of 1500 rpm, under a load of 392 N and for a test time of 60 minutes; (c) represents a wear width (mm) of a block after tested in a block-on-ring wear test according to ASTM D2714-94 and using H-60 as a block and S10 as a ring at an oil temperature of 120°C and a rotation number of 1092 rpm, under a load of 100 N and for a test time of 20 minutes; and (d) represents a weld load in a Shell four-ball load bearing test according to ASTM D2783-03 using 20-graded SUJ-2-made 0.5-inch balls at room temperature and a rotation number of 1800 rpm, wherein the gear oil composition has a 100°C kinematic viscosity of 7 mm 2 /s or more and 12.5 mm 2 /s or less, wherein the sulfur-based extreme pressure agent is a sulfurized olefin, wherein the sulfur content in the sulfurized olefin is 35 % by mass or more, and wherein the phosphorus-based extreme pressure agent is an acid phosphate amine salt and a hydrogenphosphite. a base oil, a sulfur-based extreme pressure agent, wherein the content of the sulfur-based extreme pressure agent is 1% by mass or more, based on the total amount of the composition, and a phosphorus-based extreme pressure agent, wherein the content of the phosphorus-based extreme pressure agent is 0.5% by mass or more, based on the total amount of the composition, and satisfying the following requirements (i) and (ii): Requirement (i): (a)×(b)×(c) is 0.08 or less, and Requirement (ii): [(a)×(b)×(c)/(d)]×10000 is 0.20 or less, wherein: (a) represents a wear track diameter (mm) of a fixed sphere after tested in a Shell four-ball wear test according to ASTM D4172-94 and using 20-graded SUJ-2-made 0.5-inch balls at an oil temperature of 75°C and a rotation number of 1500 rpm, under a load of 196 N and for a test time of 60 minutes; (b) represents a wear track diameter (mm) of a fixed sphere after tested in a Shell four-ball wear test according to ASTM D4172-94 and using 20-graded SUJ-2-made 0.5-inch balls at an oil temperature of 75°C and a rotation number of 1500 rpm, under a load of 392 N and for a test time of 60 minutes; (c) represents a wear width (mm) of a block after tested in a block-on-ring wear test according to ASTM D2714-94 and using H-60 as a block and S10 as a ring at an oil temperature of 120°C and a rotation number of 1092 rpm, under a load of 100 N and for a test time of 20 minutes; and (d) represents a weld load in a Shell four-ball load bearing test according to ASTM D2783-03 using 20-graded SUJ-2-made 0.5-inch balls at room temperature and a rotation number of 1800 rpm, Requirement (i): (a)×(b)×(c) is 0.08 or less, and Requirement (ii): [(a)×(b)×(c)/(d)]×10000 is 0.20 or less, (a) represents a wear track diameter (mm) of a fixed sphere after tested in a Shell four-ball wear test according to ASTM D4172-94 and using 20-graded SUJ-2-made 0.5-inch balls at an oil temperature of 75°C and a rotation number of 1500 rpm, under a load of 196 N and for a test time of 60 minutes; (b) represents a wear track diameter (mm) of a fixed sphere after tested in a Shell four-ball wear test according to ASTM D4172-94 and using 20-graded SUJ-2-made 0.5-inch balls at an oil temperature of 75°C and a rotation number of 1500 rpm, under a load of 392 N and for a test time of 60 minutes; (c) represents a wear width (mm) of a block after tested in a block-on-ring wear test according to ASTM D2714-94 and using H-60 as a block and S10 as a ring at an oil temperature of 120°C and a rotation number of 1092 rpm, under a load of 100 N and for a test time of 20 minutes; and (d) represents a weld load in a Shell four-ball load bearing test according to ASTM D2783-03 using 20-graded SUJ-2-made 0.5-inch balls at room temperature and a rotation number of 1800 rpm, wherein the gear oil composition has a 100°C kinematic viscosity of 7 mm 2 /s or more and 12.5 mm 2 /s or less, wherein the sulfur-based extreme pressure agent is a sulfurized olefin, wherein the sulfur content in the sulfurized olefin is 35 % by mass or more, and wherein the phosphorus-based extreme pressure agent is an acid phosphate amine salt and a hydrogenphosphite.