This manual is designed to provide comprehensive malaria case management training for health workers at all levels, including clinical, nursing, dispensing, laboratory and records staff. The training covers the use of malaria rapid diagnostic tests (RDTs) and the treatment of severe malaria. The five-day training programme includes interactive modules supported by job aids. The ideal group size is 20–30 participants, supported by a team of three trainers. Trainers should thoroughly review the manual, including the 'Adult Learning Techniques' module, and follow the 'Facilitator's Guide', while participants should use the 'Simplified Participant's Guide'. The training includes pre- and post-tests to assess knowledge improvement. Continuing Medical Education (CME) is encouraged after the training, and resources are provided in the appendix.