The present invention relates to tire information providing method for providing information on at least one kind of tire to customer comprising the steps of: setting at least one kind of tire of which information is to be provided; setting at least one kind of road surface condition on which said tire is made to run; setting at least one kind of mounting condition for mounting said tire; setting at least one kind of evaluation parameter of said tire that is being wanted by said customer; performing tire rolling simulation based on said tire, said road surface condition and said mounting condition getting said evaluation parameter from said tire rolling simulation; and providing information comprising said evaluation parameter to said customer.