Agriculture: in term of cost of production Thai agriculture still use a high cost. Then it’s might be difficult to competitive with other country in Asean such as Vietnam, because agriculture in Vietnam using organic fertilizer rather than using chemical fertilizer. 2 public health : when open AEC it will be easier for people and labor to flow in and out country then the disease will easier spread out into each country 3Labor with low English skill will be more difficult to seek for a job : English will be the main language for Asean then employee have to improve them self but for employee who have low English skill will find that they might in trouble seeking for a job.