Testing device having a detachable needle holder

A testing device, comprising:

• a base;
• an upper seat mounted on the base, wherein a receiving groove is defined on the upper seat;
• a test board sandwiched between the base and the upper seat;
• and
• a needle holder detachably fixed to the upper seat;
• wherein the receiving groove extends through the upper seat to partially expose the test board, a lower part of the needle holder is received in the receiving groove and abuts against the test board, and an upper portion of the needle holder protrudes from the upper seat and is configured for connecting connection terminals of a product to be tested;
• the needle holder comprises a fixing seat and a needle assembly, the needle assembly is fixed to the upper seat by the fixing seat, the needle assembly comprises a fixing member, an abutting member, and a protruding member;
• the fixing member is fixed to a lower side of the fixing seat, the protruding member and the abutting member are mounted on opposite sides of the fixing member, the protruding member is located on an upper side of the fixing seat, and the abutting member is located on the test board.