In order to increase the drawing interaction and collaboration between the users, a collaborative drawing system based on mobile CSCW method on Mobile Terminal with IOS is designed and realized, which adopts the C/S model. Through analyze the coordinated control technology, the system realizes the information communication between mobile terminal and server. At the same time, with the demand of user single hand drawing, in order to make full use of gyroscope and accelerometer sensors, it designs a scheme with Primitive as a unit. Finally, the system is tested in IOS platform, and it is indicated from the result that the system runs smoothly and can achieve the design target.