Output dropped by 6.5% compared with the same month a year earlier. It followed a 4.9% decline in January.
Industrial production in the country has been falling constantly since August 2011.
Spain, which is the fourth biggest eurozone economy, has been mired in recession since the second half of 2011.
The country has one of the highest unemployment rates in the eurozone – at about 26%. It is suffering from a troubled banking sector, excessive household and company debts, and tough government austerity measures.
Meanwhile, figures showed that industrial production in France bounced back in February, gaining 0.7% on the previous month.