The author thinks, when rental motor vehicle, because tenant causes other to damage, main body of liability to pay compensation should be lessor, its are assumed " law of road transportation safety " the 76th the 1st dangerous blame that the money lays the 2nd times. As to tenant, should lose " civil code general rule " the 106th the 2nd fault responsibility. Reason depends on: Above all, lessor the hire of because of rental motor vehicle collection, should hire attributes moving increase