The idea of market segmentation from corporation, the master of marketing-Philip Kolter would apply it in the non-profit organization, and it would complete effectively about the mission of not-for-profit organization. And Baseball Park also belongs to one of the not-for-profit organization. The marketing plan of baseball Park is the important develops job. The effective of baseball park marketing strategy will bring more audiences, more sources and more profit. It not only to promote the image of Baseball Park but also the enhance all kinds of pressure of competition. The study would to inquire into the marketing segmentation and marketing stage problems of the baseball park in Cheng Ching Hoo gymnasium. Lastly, the author of this study propose seven suggestions to Cheng Ching Hoo Baseball Park: 1. To put the work of marketing forward. 2. To integrate the business of baseball park marketing. 3. To train the staff the ability of museum marketing. 4. To understand the demand of sport consumer. 5. Always to review the results of museum marketing works. 6. To plan the courses of on-the-job training. 7. To Fundraise more kinds source from social.