Yangzhou employee's personal pension account is 140,000 yuan, with 15 and a half years of service, he can get a monthly pension after retirement.

1,288 yuan. The basic pension is equal to (the average monthly salary of the workers on duty in the province in the previous year when the insured person retired plus the average indexed monthly salary of the insured person) divided by two times the number of years of contribution multiplied by one percent; the individual account pension is equal to the accumulated savings in the individual account of the person's basic old-age pension insurance at the time of retirement divided by the number of months of the basic pension. Retirement age is 60 years old (the corresponding number of accrued months is 139) at the time of retirement the local average social wage is 6000 yuan, the average contribution index is 1.0, and the monthly contribution is 300 yuan. (6000 plus 6000) divided by 2 multiplied by 15 multiplied by one percent is equal to 900 yuan, the personal account pension is 300 multiplied by 12 multiplied by 15 divided by 139 is equal to 388 yuan (without interest), totaling 1288 yuan.