103 yuan. The monthly allowance for rural elderly over 70 years old is only provided by the local government, and the law does not clearly stipulate it. Therefore, the basic old-age pension standard for rural elderly people over 70 years old in Henan Province is 103 yuan per person per month, of which the national burden is 88 yuan and the provincial financial burden is 15 yuan. Therefore, the monthly pension subsidy for rural elderly over 70 years old in Shangcai County, Henan Province can be 103 yuan, and the provincial and county governments can also bear it themselves.