A driving supporting apparatus comprising: a first sensor (22, 24L, 24R) that detects an object present outside of a vehicle based on a reflection of a radio wave that said first sensor radiates; a second sensor (26, 28L, 28R) that detects a boundary structural object positioned at a boundary between a road area on which said vehicle can travel and an area other than said road area; a control unit (20, 30, 40, 50) configured to perform a pre-crash control to avoid a collision between said vehicle and a recognized object that is said object detected by said first sensor, said control unit being configured to make a possibility that said pre-crash control is performed when a far-side position condition is satisfied lower than when said far-side position condition is not satisfied, said far-side position condition being a condition to be satisfied when said recognized object is located at a far side of said boundary structural object with respect to said vehicle (step 435, step 615: Yes, step 625); and wherein, said control unit is further configured: to obtain a reliability degree representing a possibility that said recognized object is actually present based on a detected result of said first sensor (step 415, step 625); to subtract a predetermined subtraction value from said reliability degree of said recognized object in the case that said recognized object causes said far-side position condition to be satisfied (step 625); to perform said pre-crash control for said recognized object having said reliability degree that is equal to or greater than a predetermined threshold (step 435, step 445); and not to perform said pre-crash control for said recognized object having said reliability degree that is lower than said threshold (step 435). a first sensor (22, 24L, 24R) that detects an object present outside of a vehicle based on a reflection of a radio wave that said first sensor radiates; a second sensor (26, 28L, 28R) that detects a boundary structural object positioned at a boundary between a road area on which said vehicle can travel and an area other than said road area; a control unit (20, 30, 40, 50) configured to perform a pre-crash control to avoid a collision between said vehicle and a recognized object that is said object detected by said first sensor, said control unit being configured to make a possibility that said pre-crash control is performed when a far-side position condition is satisfied lower than when said far-side position condition is not satisfied, said far-side position condition being a condition to be satisfied when said recognized object is located at a far side of said boundary structural object with respect to said vehicle (step 435, step 615: Yes, step 625); and wherein, said control unit is further configured: to obtain a reliability degree representing a possibility that said recognized object is actually present based on a detected result of said first sensor (step 415, step 625); to subtract a predetermined subtraction value from said reliability degree of said recognized object in the case that said recognized object causes said far-side position condition to be satisfied (step 625); to perform said pre-crash control for said recognized object having said reliability degree that is equal to or greater than a predetermined threshold (step 435, step 445); and not to perform said pre-crash control for said recognized object having said reliability degree that is lower than said threshold (step 435). to obtain a reliability degree representing a possibility that said recognized object is actually present based on a detected result of said first sensor (step 415, step 625); to subtract a predetermined subtraction value from said reliability degree of said recognized object in the case that said recognized object causes said far-side position condition to be satisfied (step 625); to perform said pre-crash control for said recognized object having said reliability degree that is equal to or greater than a predetermined threshold (step 435, step 445); and not to perform said pre-crash control for said recognized object having said reliability degree that is lower than said threshold (step 435).