In this paper, we proposed an input method of Japanese sentence by using Wiimote for character input method. Wiimote has 3D accelerate sensor, therefore a user write a character in the air, our system can recognize a written character. We are using two recognition methods using only real-stroke. The recognition rate was 78.9% and 98.7% in 10 candidates. And, we adapt the error correction methods by using n-gram model. The recognition accuracy of the 1^<st> candidate phrase by using bi-gram was 91.7%.