A structure improvement for connection terminals of a terminal block includes a frame body (1) and an elastic part (2). The frame body (1) has a bottom plate (10) and a standing plate (11) bending and extending from a side of the bottom plate (10). The standing plate (11) further extends to form a resisting portion (110) and a first frame (111) curved opposite to the resisting portion (110). The elastic part (2) has a contact portion (20), a hook portion (210) extending from the contact portion (20), and a second frame (22) curved opposite to the hook portion (210). The resisting portion (110) passes through and is against the second frame (22). The hook portion (210) passes through and hooks on the first frame (111). The contact portion (20) is disposed toward the resisting portion (110) from a side of the first frame (111).
