Queensland is preparing for a very successful cotton production season, with the national crop 1.5 billion dollar already four times bigger than last season. 

The boom follows easing drought conditions and recent heavy rains and flooding.

Cotton Australia chief executive Adam Kay said despite the increased crops, the industry needs to focus on market diversification after losing China, its biggest market.

"We’ve got to keep working on that market diversification, because with a big crop coming at us next year we’ve got to make sure it finds a home," said Mr Kay.