Mesozoic　molybdenum　deposits　are　distributed　widely　in　Fujian,　and　associated　with　a　certain　amount　of　rhenium.　This　study　explores　Mesozoic　molybdenum　deposits　in　Fujian.　It　is　found　by　analysis　of　characteristics　of　ore　petrology　and　mineralogy　of　molybdenite　of　typical　molybnum　deposits　(Pingdi,　Shangxikeng,　Luobuling,　Makeng,　etc.)　in　Fujian　Province,　five　types　of　the　molybdenum　deposits　have　been　determined,　including　the　porphyry　type,　the　magmatic　hydrothermal　type,　the　volcanic　hydrothermal　type,　the　tectonic　breccia　type　and　a　few　skarn　type.　Our　systematic　field　investigation　and　petrography　study　finds　that　the　ores　mainly　have　coarse-medium　fine　grain,　platy　texture,　small　amount　of　thick　tabular　texture;　the　ore　mineral(only　molybdenite)　is　of　leaden　color,　obvious　polychroism,　2H　polymorph　(a　small　amount　of　2H+3R,　3R),　low　contents　of　impurities　including　Re((N-N×100)×10-6,　most(N-N×10)×10-6),　which　indicates　the　ores　formed　in　moderate-high　temperature　condition　and　the　ore　originates　from　crust-mantle　mixed　source　(most　crust　source);　Mesozoic　molybdenum　mineralization　is　of　universality　in　Fujian　province;　and　as　a　kind　of　accompanying　elements,　Re　is　of　some　comprehensive　utilization　value.