Software is an efficient computational technology to help deal with our modeling operation, and can benefit subsequent researches concerning the Spy crosslinking network. We established a useful software called SoP (Simulator of Polymerization) to calculate the Gel Point (GP) and Mass Distribution (MD) of the cross-linked hydrogel formed in our project. The algorithm was deduced from Flory's theory, one of the best-developed theories in polymer science. Meanwhile, the software successfully dealt with some interesting phenomena observed in our experiments, such as the activation and repression of monomers, which leads to the irregular consumption. As such, SoP is suitable for all the crosslinking reactions between chosen monomers and would be a powerful tool to calculate the GP and MD for the researchers in the field of polymer science.