With　the　aim　of　solving　the　optimal　control　problem　of　penicillin　fed-batch　fermentation　processes,　based　on　penicillin　fed-batch　fermentation　process　cellular　automata　model　(CAPFM　for　short),　a　method　of　designing　optimal　control　strategies　of　penicillin　fed-batch　fermentation　processes　is　proposed.　By　theoretical　analysis,　this　method　transforms　CAPFM　to　a　Markov　process　equivalently,　and　constructs　an　alternate　optimal　control　strategy　of　CAPFM,　then　a　simulating　system　of　penicillin　fed-batch　fermentation　process　alternate　optimal　control　is　designed.