The upgraded version of Meulife potty training seat features a more secure and reliable triangular structural design. Compared to the traditional two-legged support structure, this innovative configuration provides significantly enhanced stability, ensuring the utmost safety for toddlers. Additionally, even when not expanded, the potty training toilet can serve as a step stool, facilitating children to wash their hands or reach for items conveniently. We have meticulously optimized the seating space, expanding the legroom for children during toilet usage, reducing any feelings of constraint, and lowering the required height for climbing. The elongated and downward-extended diaper support is capable of securely fastening onto the toilet, effectively preventing the seat ring from slipping, further enhancing safety. Moreover, this design effectively prevents leakage of boys' urine, reducing the hassle of cleaning.