Reversible temperature-sensitive color-changeable gel ink

The invention discloses a reversible temperature-sensitive color-changeable gel ink. The reversible temperature-sensitive color-changeable gel ink comprises the following components in part by weight: 30-50 parts of reversible temperature-sensitive color-changeable microcapsule pigment color paste, 10-20 parts of water-soluble organic moisturizing agents, 0.1-1.0 part of 3-iodo-2-propynyl butyl carbamate (IPBC) and 0.1-1.0 part of benzotriazole, wherein the 3-iodo-2-propynyl butyl carbamate (IPBC) serves as antiseptic substances; the benzotriazole serves as antirusting agents; and the pH (potential of hydrogen) value of the reversible temperature-sensitive color-changeable gel ink is 7-9. The reversible temperature-sensitive color-changeable gel ink is used safely and reliably and has a developing and decoloration effect when the color of the reversible temperature-sensitive color-changeable gel ink reaches a certain phase-change temperature, so that a writing correction purpose is achieved.