The ruling National Council for Peace and Order (NCPO) will receive opinions via telephone, mail and websites, General Prayuth Chan-ocha said in his weekly television programme Friday night.
Eleven issues will be tackled including corruption, fixing the election system and the checks and balances for justice and independent bodies, as well as solving economic and social inequality.
Prayuth said the NCPO had conducted in-depth interviews with about 25 experts, academics, and representatives of political parties including the leaders of rival parties.
Another 25 people will be interviewed, he said, adding that the focus group would be conducted later.
He said all opinions would be collected to create a list of common proposals on issues.
The process would be done by next month before setting up a national reform council. The reform council would be selected by representatives from all relevant parties.
He said emergency issues such as political and justice system reform, which had created conflict in the past, would be solved within a year.
Long-term reforms might need a social contract from relevant parties that states the next government must work towards their permanent implementation.