We have been developing a Cherenkov ring-imaging counter, named TOP counter, as a barrel particle identification device of the Belle II detector for the super B-factory at KEK. Recently, we have started the module production with 2.7m long quartz radiator, honeycomb panel box, MCP-PMTs and the fast electronics. In the performance tests, we have evaluated the number of detected photons, time resolution and the related performance for each component. In this presentation, we show the overview of the TOP counter, test results, module production status and prospects.