A vehicular shift operation apparatus that includes a manual transmission including an input-side sub-transmission and an output-side sub-transmission, and that is capable of preventing overrun or underrun due to erroneous shift operation, is provided. The vehicular shift operation apparatus includes a manual transmission (1) including an input-side sub-transmission (2) and an output-side sub-transmission (3), and includes: a main shaft rotation speed sensor (5) that detects a main shaft rotation speed, a sensor (81, 82) that detects a position of a clutch pedal, and a controller (10). The controller (10) has a function of detecting a gear stage at a control cycle (current gear stage) and a function of determining whether the detected gear stage is correct or not.