Judge the outcomes of rehabilitation processes in terms of the level of functional enhancements of affected upper limbs of hemiplegic children is one of the major difficulties in home-based rehab. The main purpose of this study is to develop a tool for making decisions depend on the outcomes of upper limb rehabilitation. The novint falcon haptic device is used as the main hardware along with virtual reality scenarios which have been developed for the active mode functional recovery training of affected upper limbs. A fuzzy logic strategy is developed in this active mode to collect the consumed time and the connection between the haptic device and the impaired upper limb during the rehab process to register the changes of the function motion of that limb. In order to provide the therapists with the parameters as an objective evaluation to help them make their decision about the following stage of rehab. Experimental results will be presented based on the application of this method on two children.