Tester of meldometer for multiple samples

The utility model relates to a physical optical instrument, in particular to a multi-sample testing device for the melting point apparatus, comprising a furnace body, a plurality of capillary bores, a light hold, a light guide hole and a thermocouple hole. The utility model is characterized in that 2 to 4 capillary bores are drilled on the upper end surface of the furnace body for accommodating 2 to 4 capillaries loading same sample; the tests on the 4 capillaries are performed simultaneously to obtain 2 to 4 melting points; and a light guide column is inserted into the light guide hole to guide the light to the light hole evenly. The utility model has the advantages of increasing the measuring accuracy and measuring the melting point of the sample fast and accurately.