The utility model discloses a portable blood color measurement instrument for measuring liquid colors, which is designed for solving the problem that no existing portable color measurement instrument at present can be used for measuring the liquid colors. The portable blood color measurement instrument comprises a shading cylinder, a lighting system, a color sensor, a single chip microcomputer, a universal serial bus and a computer output unit, wherein the lighting system is composed of a lighting source, a collimation lens and a bandpass filter. The portable blood color measurement instrument is characterized in that red beams emitted by the lighting system evenly and parallelly irradiate to a blood sample to be tested and then react to the receiving face of the color sensor by transmission so as to be identified and processed and then be sent to the single chip microcomputer through a connection circuit. The single chip microcomputer conducts treatment once again, and data is transmitted to a computer through connection of the universal serial bus to be converted into color parameters to be shown. The portable blood color measurement instrument has the advantages of being simple in system structure, low in cost, small in volume, light in weight, convenient and easy to carry and the like.