The invention discloses a preparation method of baked type probiotic fermented jam. The preparation method comprises the following processes: preparation of fermentation agents: culturing a strain A,namely fermented cellulomonas, a strain B, namely aspergillus niger, a strain C, namely bacillus coagulans, a strain D, namely lactobacillus plantarum, and a strain E, namely bacillus subtilis, so asto prepare the fermentation agents of the strains A, B, C, D and E; preparation of compound juice: compounding bananas with other fruits and vegetables, and performing juicing to prepare the compoundjuice; preparation of seed liquid: respectively adding the compound juice to the fermentation agents of the strains A, B, C, D and E to prepare the seed liquid of the strains A, B, C, D and E; preparation of raw materials: taking the bananas as a carbon source, and compounding the bananas with other fruits and vegetables; pulping: pulping the raw materials and sterile water together to obtain compound pulp; and fermentation of compound strains: mixing the seed liquid of the strains A, B, C, D and E into the compound pulp, and performing fermentation to obtain the fermented jam. The preparationmethod has the advantages that sugar does not need to be added, heat-resistant type probiotic fermented jam suitable for baking can be prepared, and the baked type probiotic fermented jam combines the advantages of probiotic fermented jam and baked jam.