The invention provides a multi-factor evaluation method for lower palaeozoic erathem carbonate rock inner buried favorable reservoirs. The multi-factor evaluation method for lower palaeozoic erathem carbonate rock inner buried favorable reservoirs includes the steps: 1) determining the reservoir space genetic type; 2) determining rock type distribution; 3) performing comprehensive prediction on the quantity of tectonic fissures; 4) representing strongness and weakness of fluid reformation; 5) determining longitudinal distribution layer sections of favorable reservoirs; and 6) determining horizontal distribution range of favorable reservoirs. The multi-factor evaluation method for lower palaeozoic erathem carbonate rock inner buried favorable reservoirs predicts the longitudinal distribution layer sections and horizontal distribution rules of the inner buried reservoirs so as to provide guarantee for deep oil and gas exploration, clearly determines the reservoir space genetic type of the inner buried reservoirs, analyzes the main controlling factor of reservoir development, and provides a multiple factor overlapped evaluation that rock type and layer thickness can decide the longitudinal distribution layer sections of favorable reservoirs, and quantity of tectonic fissures and strongness and weakness of fluid reformation can decide the horizontal distribution range of favorablereservoirs.