A look at the capacities and performance of the Serbian banking sector in 2018, based on its evaluation by all relevant indicators, leads us to the realization that with the strengthening of the economy, the banking sector is strengthened as a pledge to further strengthen the economy. All the statistics on the banking system of Serbia in 2018, and all the assessments based on performance testing of this sector, say that this year is better than the previous one. This paper examines the important aspects of the quality of the financial constitution and the performance of the Serbian banking sector, all based on official NBS data. The trend is good, everything is on sounder grounds, so good results can be expected in the functioning of the banking sector, which will be a stronger factor in raising the growth rate of the economy of Serbian society.