Pheidole sinica is a monogynous ant species with colony sizes of up to 10,000 workers. They have a fast development speed. The queen is 14-17mm in size, while workers range from 3.5-5mm and majors measure 7-9mm. They have a reddish brown color with a dark back, while the queen is darker. Their nutrition consists of food insects, syrup, fruit, vegetables, jelly, and cooked chic.