The invention discloses a data searching method and device, and belongs to the technical field of computers. The method comprises the steps of determining codes corresponding to numeric type data in a database according to the preset code algorithm; building a bit vector search tree according to the codes corresponding to the numeric type data in the database; respectively determining the first code corresponding to the first numeric type data at the upper limit and the second code corresponding to the numeric type data at the lower limit with the numeric value range condition according to the preset code algorithm while receiving the search request carrying the numerical value range condition; searching the numeric type data meeting the search request in the database according to the bit vector search tree and the third code which is obtained by processing the first code and the second code by a bitwise manner. With the adoption of the method and the device, the data searching efficiency can be increased.