Gabelli Dividend & Income Trust operates as a diversified closed-end management investment company. The fund's investment objective is to provide a high level of total return on its assets with an emphasis on dividends and income. To achieve its objective, the fund may invest its assets in dividend-paying securities or other income-producing securities. The fund invests in various sectors, including Financial Services, Food and Beverage, Health Care, Consumer Products, Electronics, and Computer Software & Services, and others.