To　set　up　the　Web　search　model　based　on　cognition,　the　cognitive　principle　of　heuristic　rule　selection　in　the　heuristic　search　was　proposed.　Based　on　simplified　4×4　Sudoku　paradigm,　the　method　of　combination　of　behavioral　experiment　and　cognitive　model　simulation　was　used.　The　behavioral　experiment　was　conducted　by　17　participants　to　test　heuristic　rule　selection　proportions　between　two　dimensional　heuristics　and　three　dimensional　heuristics.　Behavioral　results　show　that　809　tasks　are　solved　with　two　dimensional　heuristics　among　835　tasks.　The　cognitive　model　was　set　up　to　find　out　the　mechanism　of　heuristic　rule　selection,　which　simulated　the　process　of　heuristics　selection　based　on　assumption　of　visually　goal-oriented　simple　constrained　heuristic　rule　selection.　The　difference　of　response　time　between　prediction　and　real　data　is　found　to　be　only　0.07　s.　Results　show　that　the　heuristic　rule　selection　is　a　visually　goal-oriented　simple　rule　constrained.