The invention provides a formula of lavender burning incense and a preparation process, and relates to the technical field of burning incense. The formula comprises the following raw materials in percentage by mass: 20 to 90 percent of lavender fragrant powder, 20 to 85 percent of ixonanthes chinensis powder, 0.5 to 20 percent of sandalwood and 0.5 to 25 percent of other natural spice, wherein thelavender fragrant powder is powder ground from stems, leaves and flowers of lavender. The lavender fragrant powder is lavender fragrant powder prepared by grinding stems, leaves and flowers of the lavender; 65 percent of raw material powder is taken; 35 percent of water is added; stirring is performed for 20 to 30 minutes; a fragrant mud pie is manufactured; air is exhausted; the fragrant mud pieis fed into an incense manufacturing machine and an incense mold; through the processes of extrusion, formation, shaping and natural drying, a finished product is prepared. The formula of the lavender burning incense and the preparation process have the advantages that the manufacturing flow process is simple and convenient; the incense is natural and harmless; the efficacy of realizing fresh andelegant fragrance, calming the nerves, helping the sleep, preventing the peculiar smell and preventing the mosquitoes are achieved.