Abstract: Compared to the traditional multi-cell switched-inductor boost converters, the improved multi-cell switched-inductor boost converters (InSL-Boost) are more widely used due to its unique features of higher voltage gain and lower power loss without extra components. The conventional current mode control strategies are normally utilized in these converters, however, there are some instability problems under conditions of the variable or unknown loads. To solve this problem, an adaptive current-mode control method is developed, which may stabilize the output disturbance more accurately and timely compared to the traditional ones. The controller is designed and validated via the simulations and experiments. All results show that the proposed adaptive current-mode control method based on the InSL-Boost converter has better adaptive performance accounting for the load variations, which also reveal that the effectiveness of the proposed method under the load variations.