Abstract: In order to study the compatibility of the gelled material in the shrinkage-compensating shotcrete, the X ray and the electric scanning as well as other me asuring and test means were applied to the micro structure tests on HCSA, UEA, HEA and CSA expanding agents and the cement grouts prepared with D type accelerat ing agent and the Portland cement and to analyze the micro crystal shape, mineral components and micro structure of the hydrate. The test results showed that there Wo uld be a good adaptability between the Portland cement, expanding agent and accelerating agent.In 3 days' water curing, great entringite would be formed from the hyd rate and in the 28 days' water curing, the compacted cement rock structure would be formed basically.With the comparison analysis on the tests, after the 3 days' hydra tization, the cement grout added with CSA expanding agent would form many and large column entringite.After 28 days' hydratization, the entringite would be more incr eased and enlarged than other expanding agents.In XRD chart, the diffraction peak of the entringite would be obviously increased.From the apparent features, the anal ysis showed that CSA expanding agent would have the best compatibility with the cement and accelerating agent and could be suitable to prepare the shrinkage-compe nsating shotcrete.