Lobster is one of the fishery commodities to develop. The implementation of a good manufacturing practice (GMP) is important. The level of implementation of GMP in the lobster supply chain in Lombok is unknown. Therefore, a gap analysis is needed for the application of GMP in the lobster supply chain in Lombok. The application of Good Aquaculture Practice (GAP) at the level of enlargement fisher and Good Handling Practice (GHP) at the level of catchers is included in category C or quite well. In the same case the collectors level is in category A or very good. The application of Good Transportation Practice (GTP) in lobster supply chain in Lombok is quite well. However, improvements in the application of GAP, GHP, and GTP are required. Improvement in GTP is included in improvement of GAP and GHP.