Three formula types (gel, cookie, and liquid), six commercial roach bait products containing one of active ingredients among Fipronil, Avermectin, Dinotefuran, and Chlorpyrifos were examined against susceptible strain of German cockroach, Blattella germanica (L.). For the results of killing speed (LT50 values), universal killing speed effects depended on bait formula types. The killing speed of liquid bait formula type was the fastest among three formula types. Followed by gel bait type and cookie bait type. However the control speed (LT90 values) effects depended on the active ingredients that contained in roach baits. The baits contained Fipronil were shown the strongest control performance against German cockroaches. Chlorpyrifos was similar with Fipronil. Followed by Avermectin and Dinotefuran.