Abstract: Calcium is one of plant essential nutrients, in the plant plays a very important role, Horticultural crops in calcium ion factors too little, too much can cause physiological disorders.In this paper, 10mg / L, 20mg / L, 30rag / L, 40mg / L of different concentrations of calcium ions and the control of 0mg / L concentration, compared to the rate of germination, germination energy, plant height, strain rate,in all the measurements, understanding of calcium ions on the seedling growth of green pepper, green pepper in order to identify the most appropriate concentration of seedling growth, with a view to guide the production practice, in order to lay the foundation for high yield of green pepper.