In order to solve the problems of lower power efficiency and bad packet error rate in reverse differential pulse position modulation scheme for wireless optical communication, a new hybrid modulation scheme called the reverse differential pulse position width modulation (RDPPWM) is proposed, based on reverse differential pulse position modulation (RDPPM) and reverse pulse width modulation (RPWM). The symbol structure, average transmission power and bandwidth requirement of RDPPWM and its packet rate error in additive white Gaussian noise (AWGN) channel are presented and compared with on-off keying (OOK), RDPPM and RPWM. The stimulation results show that RDPPWM has advantages in power efficiency and channel capacity, and it can decrease bandwidth requirement and doesn′t need symbol synchronization. The packet error rate of RDPPWM can drop to 2.6×10-12 while that of RDPPM is 2.2×10-8 when the same signal power is -28 dBm. Therefore, these considerations make RDPPWM a favorable candidate to select as the modulation scheme in wireless optical communication.