Drilling fluid density measuring device

The utility model provides a drilling fluid density measuring device. The drilling fluid density measuring device comprises a measuring host; the measuring cylinder is placed on the measuring host; the measuring cylinders are arranged in various models, the weights of the measuring cylinders in various models are different, and the measuring host comprises a gravity sensor capable of monitoring the weights of the measuring cylinders and the drilling fluid to be tested; the calculation module is electrically connected with the gravity sensor; the liquid crystal display can display a result calculated by the calculation module; the calculation module comprises a calling module and a plurality of algorithm modules electrically connected with the calling module; a corresponding algorithm module is arranged for each type of measuring cylinder to calculate the density of the drilling fluid contained in the measuring cylinder. Based on the technical scheme of the utility model, the calculation module can call the co