Lowest 150 yuan. According to the summary of the residents' old-age insurance policy issued by official website of Taian Human Resources and Social Security Bureau, the minimum standard of basic pension in Taian is per person per month 150 yuan, and the insured urban and rural residents aged 65 and above are appropriately inclined. Among them, the basic pension of recipients aged 65-74 and above (inclusive) is higher than the minimum basic pension standard, 5 yuan per person per month and 10 yuan respectively. Therefore, the minimum monthly income of people over 60 in Tai 'an is 150 yuan.